--- /dev/null
+zfs-scripts.conf
+++ /dev/null
-#!/bin/bash
-
-exec >> /var/log/snap.log 2>&1
-
-# This script makes the following assumptions/requirements:
-# * this script only handles one zfs filesystem, a wrapper should be created
-# to handle more
-# * this script handles all snapshots that are named in this format:
-# YYYY-MM-DD.hh.mm
-# * It ignores other snapshots that don't follow this naming convention
-
-# This converts the YYYY-MM-DD.hh.mm format to an integer.
-datetime_to_minutes() {
- perl -n -e '/(\d+)-(\d+)-(\d+)\.(\d+)\.(\d+)/; print $1 * 527040 + $2 * 44640 + $3 * 1440 + $4 * 60 + $5,"\n"'
-}
-
-datetime_to_minutes2() {
- perl -n -e '/(\d+)-(\d+)-(\d+)\.(\d+)\.(\d+)/; $monthadj=int(($2-1)/3)-1; $minadj=int($5/15); $houradj=int($4/3); print $1 * 1048576 + ( $2 + $monthadj ) * 65536 + $3 * 2048 + ( $4 + $houradj ) * 64 + $5 + $minadj,"\n"'
-}
-
-# filesystem: This is the zfs filesystem to snapshot
-# mountpoint: This is the mountpoint of the zfs filesystem to snapshot
-# numsnapshots: This number is the number of equally spaced snapshots that should exist over any given period in the past
-# maxagedays: This is the maximum number of days to keep any snapshot around for (0=infinite) (default=0).
-filesystem=$1
-mountpoint=$2
-numsnapshots=${3-12}
-maxagedays=${4-0}
-lockdir="/tmp/${filesystem}.lock"
-pool=`echo "$filesystem" | awk -F '/' '{ print $1 }'`
-
-if [ -z "$filesystem" ] || [ -z "$mountpoint" ] || [ -z "$numsnapshots" ] || [ -z "$maxagedays" ]; then
- echo "-E- Usage: $0 <filesystem> <mountpoint> <numsnapshots> <maxagedays>"
- exit 1
-fi
-
-if [ ! -d "$mountpoint" ]; then
- echo "-E- Unable to find the mountpoint: $mountpoint"
- exit 1
-fi
-
-snapshotdir="${mountpoint}/.zfs/snapshot"
-if [ ! -d "$snapshotdir" ]; then
- echo "-E- Unable to find the snapshotdir: $snapshotdir"
- exit 1
-fi
-
-# Check to see if this zfs filesystem has a scrub being performed on it now.
-# If it does, we cannot perform any snapshot create or destroy operations.
-zpool status $pool | grep scrub: | grep "in progress" > /dev/null 2>&1
-if [ $? == 0 ]; then
- echo "-W- The zfs pool '$pool' is currently being scrubbed. Skipping all snapshot operations."
- exit 0
-fi
-
-# Get the various components of the date
-datetime=${ZFSDATETIME:-$(date +%Y-%m-%d.%H.%M)}
-
-# Create the snapshot for this minute
-echo "-I- Creating ${filesystem}@${datetime}"
-zfs snapshot "${filesystem}@${datetime}"
-
-minutes=$(echo $datetime | datetime_to_minutes)
-
-lockdir="/tmp/zfs-admin-lock"
-if ! mkdir "$lockdir" >/dev/null 2>&1; then
- exit 0
-fi
-cleanup() { rm -rf "$lockdir"; }
-trap cleanup EXIT
-
-# Trim them down
-snapshots=$(ls -d ${snapshotdir}/????-??-??.??.?? 2>/dev/null)
-for snapshot in $snapshots; do
- snapminutes=$(echo "$snapshot" | sed 's,.*/,,' | datetime_to_minutes)
- snapminutes2=$(echo "$snapshot" | sed 's,.*/,,' | datetime_to_minutes2)
- age=$((minutes - snapminutes))
- window=1
- while true; do
- if [ $age -lt $((window * numsnapshots)) ]; then
- case $((snapminutes2 % window)) in
- 0) ;;
- *)
- snapname=$(echo "$snapshot" |
- sed 's,/\(.*\)/.zfs/snapshot/\(.*\),\1@\2,')
- echo "-I- Destroying $snapname"
- zfs destroy "$snapname"
- ;;
- esac
- break
- fi
- window=$((window*2))
- done
- if [ $maxagedays -gt 0 ] && [ $age -gt $((maxagedays * 24 * 60)) ]; then
- snapname=$(echo "$snapshot" |
- sed 's,/\(.*\)/.zfs/snapshot/\(.*\),\1@\2,')
- echo "-I- Destroying old $snapname"
- zfs destroy "$snapname"
- fi
-done
--- /dev/null
+#!/bin/bash
+
+LINKTO=/etc/bin
+
+git ls-files | grep -v .gitignore | grep -v wrapper | xargs -I % ln -s zfs/% $LINKTO/% 2>/dev/null
+
--- /dev/null
+#!/bin/bash
+
+# Author: Carl Baldwin & Alan Pippin
+# Description: This script takes a snapshot of the given zfs filesystem.
+# It also employs an intelligent algorithm to roll off,
+# or destroy, old snapshots.
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+if [[ -z "$SNAP_UNDER_TEST" ]]; then
+ exec >> $logdir/zfs-autosnap.log 2>&1
+fi
+
+# This script makes the following assumptions/requirements:
+# * this script only handles one zfs filesystem, a wrapper should be created
+# to handle more
+# * this script handles all snapshots that are named in this format:
+# YYYY-MM-DD.hh.mm
+# * It ignores other snapshots that don't follow this naming convention
+
+# This converts the YYYY-MM-DD.hh.mm format to an integer.
+datetime_to_minutes() {
+ perl -n -e '/(\d+)-(\d+)-(\d+)\.(\d+)\.(\d+)/; print $1 * 527040 + $2 * 44640 + $3 * 1440 + $4 * 60 + $5,"\n"'
+}
+
+# This converts date/time from YYYY-MM-DD.hh.mm to an integer that aligns
+# things to prefer certain times such as the first of the month or midnight,
+# etc
+datetime_to_minutes2() {
+ perl -n -e '/(\d+)-(\d+)-(\d+)\.(\d+)\.(\d+)/;
+ $monthadj=int(($2-1)/3)-1; # Prefer months numbered 1,4,7 and 10
+ $dayadj=$3 == 1 ? -1 : 0; # Make sure day 1 is prefered
+ $minadj=int($5/15); # Prefer multiples of 15 minutes
+ $houradj=int($4/3); # Prefer midnight,noon,etc
+ $intvalue=(
+ 1048576 * $1
+ + 65536 * ( $2 + $monthadj )
+ + 2048 * ( $3 + $dayadj )
+ + 64 * ( $4 + $houradj )
+ + $5 + $minadj
+ );
+ print $intvalue,"\n"'
+}
+
+# filesystem: This is the zfs filesystem to snapshot
+# mountpoint: This is the mountpoint of the zfs filesystem to snapshot
+# numsnapshots: This number is the number of equally spaced snapshots that should exist over any given period in the past
+# maxagedays: This is the maximum number of days to keep any snapshot around for (0=infinite) (default=0).
+filesystem=$1
+mountpoint=${2-/$1}
+numsnapshots=${3-12}
+maxagedays=${4-0}
+pool=`echo "$filesystem" | awk -F '/' '{ print $1 }'`
+
+if [ -z "$filesystem" ] || [ -z "$mountpoint" ] || [ -z "$numsnapshots" ] || [ -z "$maxagedays" ]; then
+ echo "-E- Usage: $0 <filesystem> <mountpoint> <numsnapshots> <maxagedays>"
+ exit 1
+fi
+
+if [ -z "$SNAP_UNDER_TEST" -a ! -d "$mountpoint" ]; then
+ echo "-E- Unable to find the mountpoint: $mountpoint"
+ exit 1
+fi
+
+if [ -n "$SNAP_UNDER_TEST" ]; then
+ snapshotdir="./snapshot"
+else
+ snapshotdir="${mountpoint}/.zfs/snapshot"
+fi
+
+if [ ! -d "$snapshotdir" ]; then
+ echo "-E- Unable to find the snapshotdir: $snapshotdir"
+ exit 1
+fi
+
+# Check to see if this zfs filesystem has a scrub being performed on it now.
+# If it does, we cannot perform any snapshot create or destroy operations.
+if [ -z "$SNAP_UNDER_TEST" ]; then
+ zpool status $pool | grep scan: | grep "in progress" > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ echo "-W- The zfs pool '$pool' is currently being scrubbed. Skipping all snapshot operations."
+ exit 0
+ fi
+fi
+
+snapshot() {
+ echo "-I- Creating $1"
+ if [ -z "$SNAP_UNDER_TEST" ]; then
+ zfs snapshot "$1"
+ else
+ mkdir -p snapshot/$(dirname "$(echo "$1" | sed 's,.*@,,')")
+ touch snapshot/"$(echo "$1" | sed 's,.*@,,')"
+ fi
+}
+
+destroy() {
+ echo "-I- Destroying old $1"
+ if [ -z "$SNAP_UNDER_TEST" ]; then
+ zfs destroy "$1"
+ else
+ rm -f "$1"
+ fi
+}
+
+# Get the various components of the date
+datetime=${ZFSDATETIME:-$(date +%Y-%m-%d.%H.%M)}
+
+# Create the snapshot for this minute
+snapshot "${filesystem}@${datetime}"
+
+minutes=$(echo $datetime | datetime_to_minutes)
+
+if ! mkdir "$lockdir" >/dev/null 2>&1; then
+ echo "-W- The zfs filesystem has been locked down. Skipping snapshot cleanup."
+ exit 0
+fi
+cleanup() { rm -rf "$lockdir"; }
+trap cleanup EXIT
+
+# Trim them down
+snapshots=$(ls -d ${snapshotdir}/????-??-??.??.?? 2>/dev/null)
+for snapshot in $snapshots; do
+ snapminutes=$(echo "$snapshot" | sed 's,.*/,,' | datetime_to_minutes)
+ snapminutes2=$(echo "$snapshot" | sed 's,.*/,,' | datetime_to_minutes2)
+ age=$((minutes - snapminutes))
+ window=1
+ while true; do
+ if [ $age -lt $((window * numsnapshots)) ]; then
+ case $((snapminutes2 % window)) in
+ 0) ;;
+ *)
+ snapname=${filesystem}$(echo "$snapshot" |
+ sed 's,/\(.*\)/.zfs/snapshot/\(.*\),@\2,')
+ destroy "$snapname"
+ ;;
+ esac
+ break
+ fi
+ window=$((window*2))
+ done
+ if [ $maxagedays -gt 0 ] && [ $age -gt $((maxagedays * 24 * 60)) ]; then
+ snapname=${filesystem}$(echo "$snapshot" |
+ sed 's,/\(.*\)/.zfs/snapshot/\(.*\),@\2,')
+ destroy "$snapname"
+ fi
+done
--- /dev/null
+#!/bin/bash
+
+# Author: Alan J. Pippin
+# Description: This script is a wrapper script that calls zfs-autosnap
+# for each filesystem provided below.
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+# Setup some default values
+logfile="$logdir/zfs-autosnap.log"
+numsnapshots=20
+maxagedays=365
+date=`date`
+mylockdir="/tmp/zfs-autosnap-all"
+current_hour=`date +"%H"`
+current_minute=`date +"%M"`
+current_day=`date +"%u"`
+
+# Make sure we aren't already running
+if ! mkdir "$mylockdir" >/dev/null 2>&1; then
+ echo "$date Another $0 process is already running" >> $logfile
+ exit 1
+fi
+
+# Auto snapshot every zfs filesystem on the system specified below
+date >> $logfile
+
+# Special filesystems
+# ex: zfs-autosnap storage /storage $numsnapshots 15
+# ex: zfs-autosnap tank/usr/videos /usr/videos $numsnapshots 15
+
+# Normal filesystems
+# ex: zfs-autosnap tank / $numsnapshots $maxagedays
+# ex: zfs-autosnap tank/home /home $numsnapshots $maxagedays
+
+# Daily filesystems (only perform these at midnight)
+# midnight = true if (midnight < current time < midnight+5 min)
+if [[ $current_hour == "00" && $current_minute -lt 5 ]]; then
+ echo "Performing Daily snapshots" >> $logfile
+fi
+
+# Weekly filesystems (only perform these on Sunday at midnight)
+# midnight = true if (midnight < current time < midnight+5 min)
+if [[ $current_day == "7" && $current_hour == "00" && $current_minute -lt 5 ]]; then
+ echo "Performing Weekly snapshots" >> $logfile
+fi
+
+rm -rf "$mylockdir"
--- /dev/null
+#!/usr/bin/perl
+
+use warnings;
+use strict;
+use File::Temp qw/ tempfile tempdir /;
+
+my $SSLPATH = '/usr/bin/openssl';
+
+#Usage
+sub print_usage {
+ print "ZFS Snapshot diff\n";
+ print "\t$0 [-dhirv] <zfs shapshot name> [filename]\n\n";
+ print " -d Display the lines that are different (diff output)\n";
+ print " -h Display this usage\n";
+ print " -m Use md5sum when checking for file differences";
+ print " -i Ignore files that don't exist in the snapshot (only necessary for recursing)\n";
+ print " -r Recursively diff every file in the snapshot (filename not required)\n";
+ print " -v Verbose mode\n\n";
+
+ print " [filename] is the filename RELATIVE to the ZFS snapshot root. For example, if\n";
+ print " I had a filesystem snapshot called pool/data/zone\@initial. The filename '/etc/passwd'\n";
+ print " would refer to the filename /pool/data/zone/etc/passwd in the filesystem and filename\n";
+ print " /pool/data/zone/.zfs/snapshot/initial/etc/passwd in the snapshot.\n\n";
+
+ print " A couple of examples:\n";
+ print "\t$0 -v -r -i pool/zones/lava2019\@Fri\n";
+ print "\t\tChecks the current pool/zones/lava2019 filesystem against the snapshot\n";
+ print "\t\treturning the md5sum difference of any files (ignore files that don't\n";
+ print "\t\texist in the snapshot). With verbose mode\n\n";
+
+ print "\t$0 -d pool/zones/lava2019\@Mon /root/etc/passwd\n";
+ print "\t\tCheck the md5sum for /pool/zones/lava2019/root/etc/passwd and compare\n";
+ print "\t\tit to /pool/zones/lava2019/.zfs/snapshot/Mon/root/etc/passwd. Display\n";
+ print "\t\tthe lines that are different also.\n\n";
+
+ exit(0);
+}
+
+use Getopt::Long;
+my %options = ();
+my $verbose;
+
+GetOptions("h" => \$options{help},
+ "r!" => \$options{recurse},
+ "d!" => \$options{diff},
+ "i!" => \$options{ignore},
+ "m!" => \$options{md5sum},
+ "v!" => \$verbose
+ );
+
+if ($options{help}) {
+ print_usage();
+}
+
+if ($options{recurse}) {
+ recurse_diff(shift || die "Need a ZFS snapshot name\n");
+} else {
+ my $zfsname = shift || die "Need a ZFS snapshot name\n";
+ my $file = shift || die "Need a filename\n";
+ diff_single_file($zfsname,$file);
+}
+
+exit(0);
+
+sub recurse_diff {
+ my $zfssnap = shift;
+ print "Recursive diff on $zfssnap\n" if $verbose;
+
+ $zfssnap =~ /(.+)\@(.+)/i;
+ if(($1 eq "") || ($2 eq "")) { die "-E- Invalid snapshot name\n"; }
+ my $fsname = "/" . $1;
+ my $snapname = $2;
+ if(! -d $fsname && $fsname =~ /\/\S+?(\/.*)/) { $fsname = $1; }
+ elsif(! -d $fsname && $fsname =~ /\/\S+?/) { $fsname = "/"; }
+ print "Filesystem: $fsname, Snapshot: $snapname\n" if $verbose;
+
+ my $snappath = $fsname . "/.zfs/snapshot/" . $snapname . "/";
+ my $fspath = $fsname . "/";
+ $fspath =~ s/\/\//\//gi;
+ $snappath =~ s/\/\//\//gi;
+ print "Comparing: $fspath\nto: $snappath\n" if $verbose;
+
+ my $dir = tempdir( CLEANUP => 0 );
+ my ($fh, $filename) = tempfile( DIR => $dir );
+
+ print "-> Finding files in $fspath to compare against files in $snappath\n";
+ `find $fspath -name "*" -type f > $filename`;
+ print "-> Performing a diff operation on each file found\n";
+
+ my $num_files = `cat $filename | wc | awk '{print \$1}'`;
+
+ foreach my $file (<$fh>) {
+ chomp($file);
+ $file =~ /(.*)\/(.*)/;
+ my $shortname = $2;
+ $file =~ /$fspath(.*)/;
+ my $diff = $snappath . $1;
+ if (!-e $diff) {
+ print "$file does not exist in snapshot\n" if !$options{ignore};
+ next;
+ }
+
+ if($options{md5sum}) {
+ # do the md5 sums
+ my $orig = `$SSLPATH md5 $file`;
+ my $snap = `$SSLPATH md5 $diff`;
+ $orig =~ /[\s\S]+= (.+)/;
+ my $sum1 = $1;
+ $snap =~ /[\s\S]+= (.+)/;
+ my $sum2 = $1;
+ if ($sum1 ne $sum2) {
+ print "** $file is different\n";
+ print "** $orig** $snap" if $verbose;
+ }
+ } else {
+ my $differ = system("diff \"$file\" \"$diff\" > /dev/null 2>&1");
+ if($differ) { print "** $file is different\n"; }
+ }
+ if ($options{diff}) {
+ system("diff \"$file\" \"$diff\"");
+ }
+ }
+}
+
+sub diff_single_file {
+ my $zfssnap = shift;
+ my $filename = shift;
+ print "Single-file diff on $zfssnap, file: $filename\n" if $verbose;
+
+ $zfssnap =~ /(.+)\@(.+)/i;
+ my $fsname = "/" . $1 . "/";
+ my $snapname = $2;
+ if(! -d $fsname && $fsname =~ /\/\S+?(\/.*)/) { $fsname = $1; }
+ print "Filesystem: $fsname, Snapshot: $snapname\n" if $verbose;
+
+ my $fspath;
+ if($filename !~ /^\//) { $fspath = $ENV{'PWD'} . "/" . $filename; }
+ else { $fspath = $filename; }
+
+ my $snapfspath = $fspath;
+ $snapfspath =~ s/$fsname//g;
+ my $snappath = $fsname . "/.zfs/snapshot/" . $snapname . "/" . $snapfspath;
+ $fspath =~ s/\/\//\//gi;
+ $snappath =~ s/\/\//\//gi;
+ print "Comparing: $fspath\nto: $snappath\n" if $verbose;
+ if(! -f $fspath) { print "-E- Cannot find source file: $fspath\n"; exit 1; }
+ if(! -f $snappath) { print "-E- Cannot find source file: $snappath\n"; exit 1; }
+
+ if($options{md5sum}) {
+ my $orig = `$SSLPATH md5 $fspath`;
+ my $snap = `$SSLPATH md5 $snappath`;
+ $orig =~ /[\s\S]+= (.+)/;
+ my $sum1 = $1;
+ $snap =~ /[\s\S]+= (.+)/;
+ my $sum2 = $1;
+ if ($sum1 ne $sum2) {
+ print "** Files are different\n";
+ print "** $orig** $snap" if $verbose;
+ }
+ } else {
+ my $differ = system("diff \"$fspath\" \"$snappath\" > /dev/null 2>&1");
+ if($differ) { print "** Files are different\n"; }
+ }
+ if ($options{diff}) {
+ system("diff \"$fspath\" \"$snappath\"");
+ }
+}
--- /dev/null
+#!/usr/bin/perl
+
+# Author: Alan J. Pippin
+# Description: This script parses logfiles generated by the following zfs scripts:
+# zfs-replicate
+
+$logfile=shift(@ARGV);
+$startdate=shift(@ARGV);
+$backup_pool="backups";
+
+sub usage {
+ print "Usage: $0 <log file> <date>\n";
+ exit 0;
+}
+if(! -f "$logfile") { &usage; }
+
+$kilo = 1024;
+$mega = 1024 * 1024;
+$giga = 1024 * 1024 * 1024;
+
+%month2num = ( "Jan" => "01", "Feb" => "02", "Mar" => "03", "Apr" => "04", "May" => "05", "Jun" => "06",
+ "Jul" => "07", "Aug" => "08", "Sep" => "09", "Oct" => "10", "Nov" => "11", "Dec" => "12");
+
+sub time_to_seconds {
+ my ($hour,$minute,$sec) = @_;
+ $seconds = ($hour * 60 * 60) + ($minute * 60) + ($sec);
+ return($seconds);
+}
+
+sub adjust_duration {
+ my ($duration) = @_;
+ if($duration > 3600) { $duration=int($duration/3600); $duration.="h"; }
+ elsif($duration > 60) { $duration=int($duration/60); $duration.="m"; }
+ else { $duration.="s"; }
+ return $duration;
+}
+
+sub adjust_data {
+ my ($data) = @_;
+ if(abs($data) > ($giga)) { $data = $data / $giga; $data = sprintf("%2.2fGb",$data); }
+ elsif(abs($data) > ($mega)) { $data = int($data / $mega); $data = "$data"."Mb"; }
+ elsif(abs($data) > ($kilo)) { $data = int($data / $kilo); $data = "$data"."Kb"; }
+ return $data;
+}
+
+sub parse_replicate_logfile {
+ $in_replicate=0;
+ $date="";
+ %totals=();
+ while(<FILE>) {
+ $line = $_;
+ if(($in_replicate == 0) && ("$startdate" ne "") && ($line !~ /$startdate/)) { next; }
+ if($line =~ /(\S+)\s+(\S+)\s+(\d+)\s+(\d+):(\d+):(\d+)\s+(\S+)\s+(\S+)/) {
+ $dayname=$1; $month=$2; $daynum=$3; $hour=$4; $minute=$5; $sec=$6; $year=$8;
+ if(($in_replicate == 0) && ($line =~ /replicate started/)) {
+ $in_replicate = 1;
+ $date="$dayname $month $daynum $hour:$minute:$sec $year";
+ $totals{$date}{data} = 0;
+ $totals{$date}{transfertime} = 0;
+ $totals{$date}{duration} = time_to_seconds($hour,$minute,$sec);
+ }
+ elsif(($in_replicate == 1) && ($line=~ /replicate complete/)) {
+ $in_replicate = 0;
+ $totals{$date}{duration} = time_to_seconds($hour,$minute,$sec) - $totals{$date}{duration};
+ }
+ }
+ if(($in_replicate == 1) && ($line =~ /received ([\d\.]+)(\w+)/)) {
+ $data = $1; $size = $2;
+ if($size =~ /Kb/i) { $data = $data * $kilo; }
+ if($size =~ /Mb/i) { $data = $data * $mega; }
+ if($size =~ /Gb/i) { $data = $data * $giga; }
+ chomp($line);
+ $totals{$date}{data} += $data;
+ }
+ if(($in_replicate == 1) && ($line =~ /in (\d+) seconds/)) {
+ $transfertime = $1;
+ $totals{$date}{transfertime} += $transfertime;
+ }
+ }
+
+ foreach $date (keys %totals) {
+ $duration=adjust_duration($totals{$date}{duration});
+ $data=adjust_data($totals{$date}{data});
+ $transfertime=adjust_duration($totals{$date}{transfertime});
+ if($totals{$date}{transfertime} > 0) {
+ $rate = adjust_data(int($totals{$date}{data}/$totals{$date}{transfertime}));
+ } else {
+ $rate = 0;
+ }
+ print "$date: data=${data} transfertime=$transfertime rate=${rate}/sec duration=$duration\n";
+ }
+}
+
+sub parse_snapshot_totals_logfile {
+ %totals=();
+ $in_totals=0;
+ $maxlen=0;
+ $found_startdate=0;
+ $header="";
+ while(<FILE>) {
+ $line = $_;
+ if($line =~ /logfile turned over/) { next; }
+ if(($in_totals == 0) && ("$startdate" ne "") && ($line !~ /$startdate/) && ($found_startdate==0)) { next; }
+ if(($in_totals == 0) && ("$startdate" ne "") && ($line =~ /$startdate/) && ($found_startdate==0)) { $found_startdate=1; }
+ if(($in_totals == 0) && ($line =~ /(\S+)\s+(\S+)\s+(\d+)\s+(\d+):(\d+):(\d+)\s+(\S+)\s+(\S+)/)) {
+ $dayname=$1; $month=$2; $daynum=$3; $hour=$4; $minute=$5; $sec=$6; $year=$8;
+ $in_totals = 1;
+ $month = $month2num{$month};
+ if($daynum < 10) { $daynum = "0".$daynum; }
+ $date="$month-$daynum-$year";
+ if(!defined $founddates{$date}) { $header .= $date . " "; }
+ $founddates{$date} = 1;
+ }
+ elsif(($in_totals == 1) && ($line =~ /^\s+$/)) {
+ $in_totals = 0;
+ }
+ elsif(($in_totals == 1) && ($line =~ /(\S+)\s+([\d\.]*)(\w+)\s+(\d+)/)) {
+ $filesystem = $1; $data = $2; $size = $3; $num_snaps = $4;
+ if($filesystem =~ /Snapshots/ || $filesystem =~ /Total/) { next; }
+ if($filesystem =~ /^$backup_pool/) { next; }
+ if(length($filesystem) > $maxlen) { $maxlen = length($filesystem); }
+ if($size =~ /K/i) { $data = $data * $kilo; }
+ if($size =~ /M/i) { $data = $data * $mega; }
+ if($size =~ /G/i) { $data = $data * $giga; }
+ chomp($line);
+ $totals{$filesystem}{$date}{data} = $data;
+ if($totals{$filesystem}{start_data} == 0) { $totals{$filesystem}{start_data} = $data; }
+ $totals{$filesystem}{delta} = $data - $totals{$filesystem}{start_data};
+ }
+ }
+ $total_delta=0;
+ printf("%-${maxlen}s %s %s\n","ZFS Filesystem","$header","Net Change");
+ foreach $filesystem (sort keys %totals) {
+ $hashref = $totals{$filesystem};
+ $data="";
+ foreach $date (sort keys %$hashref) {
+ if($date !~ /(\d+)-(\d+)-(\d+)/) { next; }
+ $date_data=adjust_data($totals{$filesystem}{$date}{data});
+ if($date_data eq "") { $date_data = "0"; }
+ $data .= sprintf("%10s",$date_data). " ";
+ $date_totals{$date}{data} += $totals{$filesystem}{$date}{data};
+ }
+ $data_total=adjust_data($data_total);
+ $total_delta+=$totals{$filesystem}{delta};
+ $delta=adjust_data($totals{$filesystem}{delta});
+ printf("%-${maxlen}s %s %10s\n",$filesystem,$data,$delta);
+ }
+ $data="";
+ $data_len=length($data);
+ $total_delta=adjust_data($total_delta);
+ foreach $date (sort keys %date_totals) {
+ $date_data=adjust_data($date_totals{$date}{data});
+ $data .= sprintf("%10s",$date_data). " ";
+ }
+ printf("%-${maxlen}s %-${data_len}s %10s\n","Totals:",$data,$total_delta);
+}
+
+#########
+# MAIN
+#########
+#print "-> Parsing $logfile\n";
+if("$logfile" =~ /\.[bz2|gz]/) {
+ open(FILE,"zcat $logfile|") || die "-E- Unable to open $logfile\n";
+} else {
+ open(FILE,"$logfile") || die "-E- Unable to open $logfile\n";
+}
+
+if($logfile =~ /replicate/) { parse_replicate_logfile(); }
+if($logfile =~ /snapshot-totals/) { parse_snapshot_totals_logfile(); }
+
+close(FILE);
#!/bin/bash
-: Usage: zfs-backup [filesystem] [destination_pool]
+# Author: Carl Baldwin & Alan Pippin
+# Description: This script replicates a remote zfs filesystem to a local zfs pool.
+# This script will keep all snapshots in sync, removing the ones
+# that have been deleted since the last replicate was performed.
+# This script will only send the new, or missing, snapshots since
+# the last replicate was performed.
+# Usage: replicate <hostname> <zfs filesystem>
-tmpdir="/export/home/tmp"
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
-lockdir="/tmp/zfs-admin-lock"
-if ! mkdir "$lockdir" >/dev/null 2>&1; then
- echo >&2 "ZFS admin lock directory is present."
- exit 1
-fi
+# command line arg parsing
+remote=$1
+remote_fs=$2
+remote_pool=${2%%/*}
-cleanup() { rm -rf "$lockdir"; }
+# Setup our cleanup and exit trap
+cleanup() {
+ if [[ -e "$local_list" ]]; then
+ rm -f $local_list
+ fi
+ if [[ -e "$remote_list" ]]; then
+ rm -f $remote_list
+ fi
+ $ssh $remote ls -d "$lockdir" > /dev/null 2>&1
+ if [[ $? == 0 ]]; then
+ $ssh $remote rm -rf "$lockdir"
+ fi
+}
+fatal_and_exit() {
+ echo -e 2>&1 "$1"
+ # Destroy the current backup markers from the local backup_pool and remote_pool if they exist
+ if [[ -n "$current_backup_marker" ]]; then
+ # Local backup pool current backup marker
+ $zfs list -t snapshot ${backup_pool}/${current_backup_marker} > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ $zfs destroy ${backup_pool}/${current_backup_marker}
+ fi
+ # Remote pool current backup marker
+ $ssh $remote zfs list -t snapshot ${current_backup_marker} > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ $ssh $remote $zfs destroy ${current_backup_marker}
+ fi
+ fi
+ # send email notification
+ if [[ -n "$2" ]]; then
+ echo -e "$1" | $mailx -s "zfs replicate on $hostname failed" "$2"
+ fi
+ # exit
+ exit 1
+}
+trap fatal_and_exit INT
trap cleanup EXIT
-fs=$1
-sourcepool=${1%%/*}
-fsname=${1#*/}
-destinationpool=$2
+# Declare a function to handle the replicate operation
+replicate() {
+ zfs_send="$1"
+ zfs_recv="$zfs receive -vF -d ${backup_pool}/${remote_pool}"
+ glue="$throttle $throttle_opt"
+ if [[ $throttle_enable == 1 && -e $throttle ]]; then
+ # handle using the glue in the local and remote host case properly
+ if [[ -z "$ssh" ]]; then
+ # local host glue case
+ $zfs_send | $glue | $zfs_recv
+ else
+ # remote host glue case
+ $ssh $remote "$zfs_send | $glue" | $zfs_recv
+ fi
+ else
+ # no glue case - works for both the local and remote host cases
+ $ssh $remote $zfs_send | $zfs_recv
+ fi
+ # The return code of the zfs_send | zfs_recv operation will be returned to the caller
+}
-if ! zpool list -H "$sourcepool" >/dev/null 2>&1; then
- echo >&2 "The source pool, '$sourcepool' doesn't seem to exist."
- exit 1
+# Make sure we have valid arguments
+if [[ -z "$remote" ]] || [[ -z "$remote_fs" ]]; then
+ fatal_and_exit "Usage: $0 <hostname> <zfs filesystem>"
fi
-if ! zpool list -H "$destinationpool" >/dev/null 2>&1; then
- echo >&2 "The destination pool, '$destinationpool' doesn't seem to exist."
- exit 1
+# check for localhost
+if [[ $remote = "localhost" ]]; then
+ remote=""
+ ssh=""
fi
-if ! zfs list -H "$fs" >/dev/null 2>&1; then
- echo >&2 "The source filesytem, '$fs' doesn't seem to exist."
- exit 1
+# Make sure the local backup pool and local receiving filesystem exist, or print some errors
+zpool list -H "$backup_pool" >/dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- The local backup pool on $hostname, '$backup_pool' doesn't seem to exist." $mailto
+fi
+zfs list "$backup_pool/$remote_pool" >/dev/null 2>&1
+if [ $? != 0 ]; then
+ echo >&2 "-I- The local filesystem for the remote pool, '$backup_pool/$remote_pool' doesn't seem to exist."
+ echo >&2 " Creating the local filesystem to receive the remote pool into: $backup_pool/$remote_pool"
+ $zfs create $backup_pool/$remote_pool
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote $zfs on $hostname create command failed" $mailto
+ fi
fi
-printsnaps() {
-sed 's,.*/,,' | awk '{print $1}'
-}
+# Obtain the zpool guid for the local backup pool
+backup_pool_guid=`zpool get guid $backup_pool 2>&1 | grep $backup_pool | awk '{ print $3 }'`
+zpool get guid $backup_pool > /dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- Unable to extract the guid for the local backup pool on $hostname: $backup_pool" $mailto
+fi
-zfs list -rH -t snapshot $sourcepool/$fsname | printsnaps > /tmp/source-list
-zfs list -rH -t snapshot $destinationpool/$fsname | printsnaps > /tmp/destination-list
-diff -u /tmp/source-list /tmp/destination-list | grep -v '^+++' | awk '/^\+/ {print}' | sed "s,^\+,$destinationpool/," > /tmp/obsolete-snapshots
-rm -f /tmp/source-list /tmp/destination-list
+# Turn on shell verbosity
+set -x
-echo >&2 "Removing obsolete backups from the destination pool"
-for snapshot in $(cat /tmp/obsolete-snapshots); do
- echo >&2 "Removing '$snapshot' from destination."
- zfs destroy "$snapshot"
+# Create the remote lockdir before continuing with the replicate
+# Spinlock on creating the lock
+maxsleeptime=60
+maxattempts=500
+attempts=0
+while true; do
+ $ssh $remote mkdir "$lockdir" >/dev/null 2>&1
+ if [ $? != 0 ]; then
+ # Another zfs admin tool is running.
+ # Wait a random amount of time and try again
+ ransleep=$(($RANDOM % $maxsleeptime))
+ sleep $ransleep
+ ((attempts=attempts+1))
+ else
+ # No other zfs admin tool is running, we can now.
+ break
+ fi
+ if [[ $attempts -gt $maxattempts ]]; then
+ # We've exceeded our maximum while loop count
+ echo "-E- The zfs filesystem has been locked down. Skipping replicate operation."
+ fail_msg=`$ssh $remote ls -ld $lockdir 2>&1`
+ fatal_and_exit "zfs-replicate-all on $hostname unable to obtain zfs admin lock:\n$fail_msg" $mailto
+ fi
done
-echo >&2 "Rolling back to the most recent snapshot on the destination."
-zfs rollback $(zfs list -rH -t snapshot $destinationpool/$fsname | awk '{snap=$1} END {print snap}')
+# Setup our backup marker names
+current_backup_marker=${remote_fs}@current-backup-${backup_pool_guid}
+previous_backup_marker=${remote_fs}@previous-backup-${backup_pool_guid}
-echo >&2 "Calculating the most recent common snapshot between the two filesystems."
-common=""
-if zfs list -H "$destinationpool/$fsname" >/dev/null 2>&1; then
- for snap in $(zfs list -rH -t snapshot "$destinationpool/$fsname" |
- sed 's,.*@,,' | awk '{print$1}'); do
- if zfs list -rH -t snapshot "$fs" | sed 's,.*@,,' | awk '{print$1}' | grep "^${snap}$" >/dev/null 2>&1; then
- common=$snap
- fi
- done
+# List the snapshots on the remote machine.
+remote_list=$(mktemp /tmp/replicate.XXXXXX)
+$ssh $remote \
+ $zfs list -H -t snapshot |
+ grep ^${remote_fs}@ |
+ awk '{print$1}' > $remote_list
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote $zfs list on $hostname command failed" $mailto
fi
-base=$common
-foundcommon=false
-if [ -z "$common" ]; then
- foundcommon=true
+# List the snapshots on the local machine.
+# Don't list the current backup marker if it exists on the local side.
+# If you do, it can mess up the common finding algorithm below.
+local_list=$(mktemp /tmp/replicate.XXXXXX)
+$zfs list -H -t snapshot |
+ grep ^${backup_pool}/${remote_fs}@ |
+ grep -v ^${backup_pool}/${current_backup_marker} |
+ awk "{gsub(/^$backup_pool./,\"\",\$1); print\$1}" > $local_list
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- local $zfs list on $hostname command failed" $mailto
fi
-for snap in $(zfs list -rH -t snapshot "$fs" |
- sed 's,.*@,,' | awk '{print$1}'); do
- if [ "$snap" = "$common" ]; then
- foundcommon=true
- continue
+# Destroy the current backup marker snapshot on the remote system if it exists
+grep -q ${current_backup_marker} $remote_list
+if [ $? == 0 ]; then
+ $ssh $remote $zfs destroy ${current_backup_marker}
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote $zfs destroy on $hostname command failed" $mailto
fi
+fi
- if $foundcommon; then
- if [ -z "$base" ]; then
- echo >&2 "Sending '$1/$snap'"
- zfs send "$1@$snap" > $tmpdir/zfs.part
- mv $tmpdir/zfs.part $tmpdir/zfs.data
- zfs recv "$destinationpool/$fsname" < $tmpdir/zfs.data
- rm -f $tmpdir/zfs.data
- zfs set readonly=on "$destinationpool"
- zfs set atime=off "$destinationpool"
- zfs set sharenfs=off "$destinationpool"
- zfs set mountpoint=legacy "$destinationpool"
- zfs unmount "$destinationpool/$fsname"
- zfs rollback "$destinationpool/$fsname@$snap"
- else
- echo >&2 "Sending '$1@$base' -> '$1/$snap'"
- zfs send -i "$1@$base" "$1@$snap" > $tmpdir/zfs.part
- mv $tmpdir/zfs.part $tmpdir/zfs.data
- zfs recv "$destinationpool/$fsname" < $tmpdir/zfs.data
- rm -f $tmpdir/zfs.data
- # zfs unmount "$destinationpool/$fsname"
- # zfs rollback "$destinationpool/$fsname@$snap"
+# Create the current backup marker snapshot on the remote system
+$ssh $remote $zfs snapshot ${current_backup_marker}
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote $zfs snapshot on $hostname command failed" $mailto
+fi
+
+# Check to see if the previous backup marker exists in the remote snapshot list.
+# Check to see if the previous backup marker exists in the local snapshot list.
+# If the previous backup markers exists, perform an incremental replicate. Else:
+# 1) check to see if a common snapshot exists, and perform an incremental replicate.
+# 2) if no common snapshot exists, destroy the local filesystem, and perform a full replicate.
+grep -q ${previous_backup_marker} $remote_list
+no_markers=$?
+grep -q ${previous_backup_marker} $local_list
+no_markers=$(($no_markers || $?))
+
+if [ $no_markers == 0 ]; then
+ # We found backup markers, incrementally send the new snaps
+
+ # First, rollback the local backup pool to the previous backup marker in case the previous
+ # backup was interrupted for some reason. If we don't do this, the zfs send -R command
+ # below may complain about snaps already existing as it tries to resend from the
+ # previous backup marker again from a previously interrupted replicate.
+ $zfs rollback -r ${backup_pool}/${previous_backup_marker}
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote incremental $zfs rollback command failed on $hostname" $mailto
+ fi
+ # Now it should be safe to send the snaps
+ replicate "$zfs send -R -I${previous_backup_marker} ${current_backup_marker}"
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote incremental $zfs send command failed on $hostname" $mailto
+ fi
+else
+ # We didn't find any backup markers, next check to see if we have a common snapshot.
+
+ # See what the most recent snapshot on the remote end is.
+ latest=$(tail -n 1 $remote_list)
+
+ # I did this to make sure that diff would always display the most recent common
+ # Since we're keying off the context of the diff, we need to ensure we will get context
+ # by injecting a known difference in case no others exist in the lists.
+ echo bogus.remote >> $remote_list
+ echo bogus.local >> $local_list
+ common=$(diff -u $remote_list $local_list | grep '^ ' | tail -n 1)
+
+ if [[ -n "$common" ]]; then
+ # We found a common snapshot, incrementally send the new snaps
+ replicate "$zfs send -R -I${common/*@/@} ${current_backup_marker}"
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote incremental $zfs send command failed on $hostname" $mailto
+ fi
+ else
+ # We did not find any markers or a common snapshot
+ # At this point, we'll have to send the entire filesystem
+ # Destroy the local filesystem if it exists before receving the full replicate
+ zfs list ${backup_pool}/${remote_fs} > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ if [[ $destroy_local_filesystem_on_full_replicate == 1 ]]; then
+ $zfs destroy -r ${backup_pool}/${remote_fs}
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote full $zfs destroy command failed on $hostname" $mailto
+ fi
+ else
+ echo "-W- We need to destroy a local filesystem before receiving a full stream."
+ echo " However, since the option is set to prevent this, skipping replicate operation."
+ fatal_and_exit "unable to destroy local filesystem:\n$zfs destroy -r ${backup_pool}/${remote_fs} not able to run on $hostname" $mailto
+ fi
+ fi
+ # Send the full filesystem
+ replicate "$zfs send -R ${current_backup_marker}"
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote full $zfs send command failed on $hostname" $mailto
fi
- base=$snap
fi
-done
+fi
+
+# destroy the previous backup markers now that we've replicated past them
+# don't check the return codes here because these may not exist, and that is ok
+$zfs destroy ${backup_pool}/${previous_backup_marker} > /dev/null 2>&1
+$ssh $remote $zfs destroy ${previous_backup_marker} > /dev/null 2>&1
-true
+# Rename the current backup marker to be the previous backup marker
+$zfs rename ${backup_pool}/${current_backup_marker} ${backup_pool}/${previous_backup_marker}
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- local $zfs rename command failed on $hostname" $mailto
+fi
+$ssh $remote $zfs rename ${current_backup_marker} ${previous_backup_marker}
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote $zfs rename command failed on $hostname" $mailto
+fi
--- /dev/null
+#!/bin/bash
+
+# Author: Alan J. Pippin
+# Description: This script calls zfs-replicate for each filesystem needing
+# to be backed up, or replicated, to another ZFS pool.
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+# Setup some default values
+logfile="$logdir/zfs-replicate.log"
+mylogfile="$logdir/zfs-replicate-all.log"
+date=`date`
+starttime=`date +%s`
+
+# Make sure we aren't already running
+SCRIPT_NAME=${0##*/}
+PROCESS_LIST=`tempfile`
+ps -ef | grep -e "$SCRIPT_NAME" | grep -v grep | grep -v $$ | grep -v $PPID >> $PROCESS_LIST
+if [[ $? == 0 ]]; then
+ echo "$date Another $SCRIPT_NAME process is already running" >> $mylogfile
+ cat $PROCESS_LIST >> $mylogfile
+ exit 1
+fi
+[[ -e "$PROCESS_LIST" ]] && rm -f $PROCESS_LIST
+
+# This function checks to see if our runtime has exceeded our stoptime
+timeexceeded() {
+ if [[ $maxruntime == 0 ]]; then
+ return 0
+ fi
+ currenttime=`date +%s`
+ elapsedtime=$(($currenttime - $starttime))
+ stoptime=$(($maxruntime*60))
+ if [[ $elapsedtime -gt $stoptime ]]; then
+ #echo "$elapsedtime > $stoptime"
+ return 1
+ fi
+ #echo "$elapsedtime < $stoptime"
+ return 0
+}
+
+# This function cleanup and exit trap
+cleanup_and_exit() {
+ #echo "cleanup and exit"
+ rm -rf "$lockdir"
+ exit 0
+}
+trap cleanup_and_exit INT
+
+fatal_and_exit() {
+ # echo message to terminal
+ echo -e 2>&1 "$1"
+ # send email notification
+ echo -e "$1" | $mailx -s "zfs-replicate-all on $hostname failed" "$mailto"
+ exit 1
+}
+
+# This function executes the replicate command and checks the stoptime
+replicate() {
+ zfs-replicate $* >> $logfile 2>&1
+ timeexceeded
+ if [ $? == 1 ]; then
+ cleanup_and_exit
+ fi
+}
+
+# This function obtains the date a given snapshot was created in epoch seconds
+snapshot_age() {
+ snapshot=${backup_pool}/${1}${previous_backup_marker}
+ $zfs list -t snapshot ${snapshot} > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ $zfs get creation ${snapshot} > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ snap_creation=`$zfs get creation ${snapshot} | grep $1 | awk '{ print $3" "$4" "$5" "$6" "$7 }'`
+ snap_age=`date -d "$snap_creation" +%s`
+ echo "$snap_age"
+ else
+ echo "0"
+ fi
+ else
+ echo "0"
+ fi
+}
+
+# Import the local backup pool if needed and the option is given to do so, else error out
+zpool list -H "$backup_pool" >/dev/null 2>&1
+if [ $? != 0 ]; then
+ if [[ $import_export_backup_pool == 1 ]]; then
+ zpool import $backup_pool
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- unable to import the backup pool $backup_pool on $hostname" "$mailto"
+ fi
+ else
+ fatal_and_exit "-E- The local backup pool on $hostname, '$backup_pool' doesn't seem to exist." "$mailto"
+ fi
+fi
+
+# Obtain the zpool guid for the local backup pool
+backup_pool_guid=`zpool get guid $backup_pool 2>&1 | grep $backup_pool | awk '{ print $3 }'`
+zpool get guid $backup_pool > /dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- Unable to extract the guid for the local backup pool on $hostname: $backup_pool" "$mailto"
+fi
+
+# Setup our backup marker names
+current_backup_marker=@current-backup-${backup_pool_guid}
+previous_backup_marker=@previous-backup-${backup_pool_guid}
+
+# Auto snapshot every zfs filesystem on the system specified below
+echo "$date ZFS replicate started" >> $logfile
+echo "$date ZFS replicate started" | tee -a $mylogfile
+
+# Sort the filesystems to replicate by the oldest backup first
+tmpfile=`tempfile`
+for filesystem in $filesystems_to_replicate; do
+ age=`snapshot_age $filesystem`
+ echo $filesystem $age >> $tmpfile
+done
+sorted_filesystems=`cat $tmpfile | sort -n -k 2 | awk '{ print $1 }'`
+rm -f $tmpfile
+
+# Replicate the sorted filesystems
+for filesystem in $sorted_filesystems; do
+ echo "-> Replicating $remote:$filesystem to ${backup_pool}/${filesystem}" | tee -a $mylogfile
+ replicate $remote $filesystem
+done
+
+# Export the local pool if told to do so
+if [[ $import_export_backup_pool == 1 ]]; then
+ # Don't export the pool if there is a currently running zfs-scrub operation
+ ps -ef | grep -q "zfs-scrub ${backup_pool}" | grep -v grep
+ if [ $? != 0 ]; then
+ zpool export $backup_pool
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- unable to export the local backup pool $backup_pool on $hostname" "$mailto"
+ fi
+ fi
+fi
+
+# All done
+echo `date` ZFS replicate complete >> $logfile
+echo `date` ZFS replicate complete | tee -a $mylogfile
+
+# Parse the log file and extract our backup stats
+zfs-log-parser "$logfile" "$date" >> $logfile
+zfs-log-parser "$logfile" "$date" | tee -a $mylogfile
+
--- /dev/null
+#!/bin/bash
+
+# Author: Alan Pippin
+# Description: This script "restores" or sends a local filesystem to a remote zfs pool.
+# Usage: zfs-restore <src pool> <src filesystem> <dst pool> <dst filesystem> <dst hostname>
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+# command line arg parsing
+src_pool=$1
+src_fs=$2
+dst_pool=$3
+dst_fs=$4
+dst_hostname=$5
+
+if [[ -z "$SCRIPT_UNDER_TEST" ]]; then
+ exec >> $logdir/zfs-restore.log 2>&1
+fi
+
+fatal_and_exit() {
+ echo -e 2>&1 "$1"
+ exit 1
+}
+trap fatal_and_exit INT
+
+# Make sure we have valid arguments
+if [[ -z "$src_pool" ]] || [[ -z "$src_fs" ]] || [[ -z "$dst_pool" ]] || [[ -z "$dst_fs" ]] || [[ -z "$dst_hostname" ]]; then
+ fatal_and_exit "Usage: $0 <src pool> <src filesystem> <dst pool> <dst filesystem> <dst hostname>"
+fi
+
+date=`date`
+echo "$date ZFS restore started: $src_pool/$src_fs -> $dst_hostname:$dst_pool/$dst_fs"
+
+# check for localhost
+if [[ $dst_hostname = "localhost" ]]; then
+ dst_hostname=""
+ ssh=""
+fi
+
+# Make sure the src pool and src filesystem exist, or print some errors
+zpool list -H "$src_pool" >/dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- The src pool, '$src_pool' doesn't seem to exist."
+fi
+zfs list "$src_pool/$src_fs" >/dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- The src filesystem for the src pool, '$src_pool/$src_fs' doesn't seem to exist."
+fi
+
+# Obtain the zpool guid for the src pool
+src_pool_guid=`zpool get guid $src_pool 2>&1 | grep $src_pool | awk '{ print $3 }'`
+zpool get guid $src_pool > /dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- Unable to extract the guid for the src pool on $hostname: $src_pool" $mailto
+fi
+
+# Setup our backup marker names
+last_backup_marker=${src_fs}@previous-backup-${src_pool_guid}
+
+# Check to make sure the src fs exists
+$zfs list -t snapshot "$src_pool/$last_backup_marker" > /dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- The src snapshot '$src_pool/$last_backup_marker' does not exist. Unable to continue."
+fi
+
+# Check to make sure the dst pool exists
+$ssh $dst_hostname $zfs list ${dst_pool} > /dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- The destination pool '$dst_pool' does not exist. Create the pool '$dst_pool' and try again."
+fi
+
+# Check to make sure the dst filesystem does not exist
+$ssh $dst_hostname $zfs list ${dst_pool}/${dst_fs} > /dev/null 2>&1
+if [ $? == 0 ]; then
+ fatal_and_exit "-E- The destination pool/filesystem '$dst_pool/$dst_fs' already exists. Destroy the filesystem '$dst_fs' and try again."
+fi
+
+# Now send the src filesystem
+if [[ -n "$SCRIPT_UNDER_TEST" ]]; then
+ echo "$zfs send -R $src_pool/$last_backup_marker | $ssh $dst_hostname $zfs recv -dv $dst_pool"
+else
+ if [[ $throttle_enable == 1 && -e $throttle ]]; then
+ $zfs send -R "$src_pool/$last_backup_marker" | $throttle $throttle_opt | $ssh $dst_hostname $zfs recv -dv $dst_pool
+ else
+ $zfs send -R "$src_pool/$last_backup_marker" | $ssh $dst_hostname $zfs recv -dv $dst_pool
+ fi
+fi
+
+# Now rename the dst filesystem (move it into place)
+if [[ -n "$SCRIPT_UNDER_TEST" ]]; then
+ echo "$ssh $dst_hostname $zfs rename $dst_pool/$src_fs $dst_pool/$dst_fs"
+else
+ $ssh $dst_hostname $zfs rename $dst_pool/$src_fs $dst_pool/$dst_fs
+fi
+
+# All done!
+date=`date`
+echo "$date ZFS restore completed: $src_pool/$src_fs -> $dst_hostname:$dst_pool/$dst_fs"
+
--- /dev/null
+#!/bin/bash
+
+# Author: Alan J. Pippin
+# Description: This script calls zfs-restore for each filesystem needing
+# to be restored (that was formerly replicated here) to another ZFS pool.
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+# Setup some default values
+logfile="$logdir/zfs-restore-all.log"
+
+# Setup our output
+if [[ -z "$SCRIPT_UNDER_TEST" ]]; then
+ exec >> $logfile 2>&1
+fi
+
+cleanup_and_exit() {
+ exit 1
+}
+trap cleanup_and_exit INT
+
+# See if the user has a specific pool to restore in mind
+restore_pool=$1
+
+# Restore every ZFS filesystem we were told to replicate
+echo `date` ZFS restore started
+
+# For each filesystem we are supposed to restore, do it
+for filesystem in $filesystems_to_replicate; do
+ dst_pool=${filesystem%%/*}
+ dst_fs=${filesystem#*/}
+ # Check to make sure the dst filesystem does not exist
+ if [[ $remote = "localhost" ]]; then
+ $ssh $remote $zfs list ${dst_pool}/${dst_fs} > /dev/null 2>&1
+ else
+ $zfs list ${dst_pool}/${dst_fs} > /dev/null 2>&1
+ fi
+ if [ $? != 0 ]; then
+ echo "$filesystem" | grep -q "$restore_pool"
+ if [ $? == 0 ]; then
+ # This filesystem matches our restore pool pattern
+ echo `date` Restoring $filesystem to $remote
+ zfs-restore $backup_pool $filesystem $dst_pool $dst_fs $remote
+ fi
+ else
+ echo "-I- Filesystem already exists on destination. Skipping: $filesystem"
+ fi
+done
+
+# All done
+echo `date` ZFS restore complete
+
--- /dev/null
+#!/bin/bash
+
+# Author: Alan Pippin
+# Description: This script will remove all snaps containing a given snapshot pattern
+# across all filesystems on a given pool.
+# Usage: zfs-rm-all-snaps <pool> <snapshot pattern>
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+# command line arg parsing
+zfs_pool=$1
+snap_pattern=$2
+
+if [[ -z "$zfs_pool" ]] || [[ -z "$snap_pattern" ]]; then
+ echo "Usage: $0 <pool> <snapshot pattern>"
+ exit 1
+fi
+
+echo "-> Deleting all snapshots on pool '$zfs_pool' with pattern '$snap_pattern'"
+for snap in `zfs list -t snapshot 2>/dev/null | grep "^$zfs_pool" | grep "$snap_pattern" | awk '{print $1}'`; do
+ echo " removing snapshot: $snap"
+done
+
+echo -e "\n<Press Enter to execute removal, CTL-C to abort>";
+read
+
+for snap in `zfs list -t snapshot 2>/dev/null | grep "^$zfs_pool" | grep "$snap_pattern" | awk '{print $1}'`; do
+ echo " destroying snapshot: $snap"
+ zfs destroy "$snap" 2>/dev/null
+done
+
+echo "-> Snapshots removed"
--- /dev/null
+###########################################################################
+# local configuration file for ZFS scripts
+###########################################################################
+
+# setup your path here to find all the binaries the ZFS scripts call
+PATH=/usr/sbin:/sbin:/etc/bin:.:$PATH
+
+# set our hostname
+hostname=`hostname`
+
+# specify the path to the zfs binary
+zfs=/sbin/zfs
+
+# specify the path to your command line mailer
+mailx=/usr/bin/mailx
+
+# specify the path to the logdir the ZFS scripts should dump their logs to
+logdir="/var/log/zfs"
+
+# specify the name of the lockdir used when performing ZFS admin operations
+lockdir="/tmp/zfs-admin-lock"
+
+# specify the user to send email reports to
+mailto="user@domain"
+
+# specifu the ssh command and any options needed for accessing a remote server
+ssh="ssh"
+
+# specify the fqdn of the remote server to pull snapshots from to backup locally
+# specify "localhost" if the remote server is the local machine
+remote=
+
+# specify the name of the local pool to store the $remote's snapshots into
+backup_pool=
+
+# import backup pool before replication and export backup pool after replication
+import_export_backup_pool=0
+
+# when this variable is set, local filesystems will be destroyed
+# before receiving a full streams into them from the remote source.
+# if it needs to do this, and this option is set to 0, it aborts.
+destroy_local_filesystem_on_full_replicate=0
+
+# set this to 1 if you want the snapshot script to run in "test" mode (not really take any snaps)
+# leave blank if not under test
+SNAP_UNDER_TEST=
+
+# Specify the maximum run time in minutes that the replicate script can run for (0=no limit)
+maxruntime=0
+
+# Setup throttling related parameters that will rate limit the zfs send | zfs receive pipe
+# The maximum limit a local backup can handle to avoid excessive CPU load is 10MB/s
+throttle_enable=0
+throttle_opt="-v -M 10"
+
+# Specify the list of filesystems to replicate from the $remote to the $backup_pool (1 per line)
+# The format of each line should be: pool/filesystem
+filesystems_to_replicate="
+"
+
--- /dev/null
+#!/bin/bash
+
+# Author: Alan J. Pippin
+# Description: This script will attempt to scrub a given pool.
+# This script ensures that only 1 scrub operation is
+# running at any given time. This serializes the zfs
+# scrub process for any pool.
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+exec >> $logdir/zfs-scrub.log 2>&1
+
+pools="$*"
+maxsleeptime=360
+
+if [ -z "$pools" ]; then
+ echo "-E- Usage: $0 <pools>"
+ exit 1
+fi
+
+fatal_and_exit() {
+ # echo message to terminal
+ echo -e 2>&1 "$1"
+ # send email notification
+ echo -e "$1" | $mailx -s "zfs scrub on $hostname failed" "$mailto"
+ exit 1
+}
+
+for i in $pools
+do
+ # Import the local pool if needed and option was given to do so, else error out
+ zpool list -H "$i" >/dev/null 2>&1
+ if [ $? != 0 ]; then
+ if [[ $import_export_backup_pool == 1 ]] && [[ "$i" =~ "$backup_pool" ]]; then
+ zpool import $i
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- unable to import the pool $i"
+ fi
+ else
+ fatal_and_exit "-E- The local pool, '$i' doesn't seem to exist."
+ fi
+ fi
+
+ # Check to see if any zfs filesystem has a scrub being performed on it now.
+ # If it does, we cannot perform more than one scrub operation at a time.
+ while true; do
+ zpool status | grep scan: | grep "in progress" > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ # Another zpool scrub operation is already running
+ # Wait until it is done before continuing
+ ransleep=$(($RANDOM % $maxsleeptime))
+ sleep $ransleep
+ else
+ # Another zpool scrub operation is not running
+ break
+ fi
+ done
+
+ date=`date`
+ echo "$date: Scrub started for zfs pool $i"
+ zpool scrub $i
+
+ # Wait until the scrub completes, and check for any errors
+ while true; do
+ zpool status $i 2>/dev/null | grep scan: | grep "in progress" > /dev/null 2>&1
+ if [ $? == 0 ]; then
+ # Our zpool scrub operation is still running
+ # Wait until it is done before continuing
+ ransleep=$(($RANDOM % $maxsleeptime))
+ sleep $ransleep
+ else
+ # Our scrub operation has completed
+ break
+ fi
+ done
+
+ date=`date`
+ echo "$date: Scrub completed for zfs pool $i"
+
+ # Check for any scrub errors
+ zpool status $i | grep scan:
+ zpool status $i | grep scan: | grep "with 0 errors" > /dev/null 2>&1
+ if [ $? != 0 ]; then
+ # The scrub found errors
+ zpool status $i | $mailx -s "zpool scrub on $hostname $i found errors" "$mailto"
+ fi
+
+ # Export the local pool if told to do so
+ if [[ $import_export_backup_pool == 1 ]] && [[ "$i" =~ "$backup_pool" ]]; then
+ # Don't export the pool if there is a currently running zfs-replicate operation
+ ps -ef | grep -q "zfs-replicate" | grep -v grep
+ if [ $? != 0 ]; then
+ zpool export $i
+ if [ $? != 0 ]; then
+ echo "-E- unable to export the local pool $i"
+ zpool status $i | $mailx -s "zpool scrub on $hostname unable to export the local pool $i" "$mailto"
+ fi
+ fi
+ fi
+
+done
+
--- /dev/null
+#!/usr/bin/perl
+
+@snapshots=`zfs list -t snapshot`;
+
+$kilo = 1024;
+$mega = 1024 * 1024;
+$giga = 1024 * 1024 * 1024;
+$maxlen = 0;
+
+sub adjust_size
+{
+ my ($size) = @_;
+ if($size > ($giga)) { $size = $size / $giga; $size = sprintf("%2.2fG",$size); }
+ elsif($size > ($mega)) { $size = int($size / $mega); $size = "$size"."M"; }
+ elsif($size > ($kilo)) { $size = int($size / $kilo); $size = "$size"."K"; }
+ return $size;
+}
+
+foreach $snapshot (@snapshots)
+{
+ chomp($snapshot);
+ if($snapshot =~ /(\S+)\@(\S+)\s+(\S+)\s+/) {
+ $filesystem = $1;
+ $size = $3;
+ if(length($filesystem) > $maxlen) { $maxlen = length($filesystem); }
+ if($size =~ /k/i) { $size = $size * $kilo; }
+ if($size =~ /m/i) { $size = $size * $mega; }
+ if($size =~ /g/i) { $size = $size * $giga; }
+ $totals{$filesystem}{size} += $size;
+ $totals{$filesystem}{snapshots}++;
+ }
+}
+
+$maxlen=$maxlen+2;
+printf "%-${maxlen}s %-15s %-10s\n","ZFS Filesystem","Snapshots Size","Num Snapshots";
+printf "%-${maxlen}s %-15s %-10s\n","--","--","--";
+foreach $key (sort keys %totals)
+{
+ $size = $totals{$key}{size};
+ $total_size += $size;
+ $total_snapshots += $totals{$key}{snapshots};
+ $size = &adjust_size($size);
+ printf "%-${maxlen}s %-15s %-10s\n", $key, $size, $totals{$key}{snapshots};
+}
+
+$total_size = &adjust_size($total_size);
+printf "%-${maxlen}s %-15s %-10s\n","--","--","--";
+printf "%-${maxlen}s %-15s %-10s\n","Total Snapshots",$total_size,$total_snapshots;
+
--- /dev/null
+#!/bin/bash
+
+# Place this script in your crontab to run daily.
+# It produces a log file that can be parsed by the
+# zfs-log-parser script to display a nice table
+# showing how much space the snapshots are taking up.
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+logfile="$logdir/zfs-snapshot-totals.log"
+
+date >> $logfile
+zfs-snapshot-totals >> $logfile
+echo >> $logfile
+
projects / zfs-ubuntu / .git / commitdiff
