From 33fdac775c0fe55f73bb79166b33846ac3381bde Mon Sep 17 00:00:00 2001
From: "Alan J. Pippin" <ajp@pippins.net>
Date: Wed, 16 Jan 2013 19:26:55 -0700
Subject: [PATCH] Fixed bugs related to import/export backup pool feature.

---
 zfs-scrub | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/zfs-scrub b/zfs-scrub
index c7d6297..4dfdbd3 100755
--- a/zfs-scrub
+++ b/zfs-scrub
@@ -21,20 +21,26 @@ if [ -z "$pools" ]; then
    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 ]]; then
+    if [[ $import_export_backup_pool == 1 ]] && [[ "$i" =~ "$backup_pool" ]]; then
       zpool import $i
       if [ $? != 0 ]; then
-        echo "-E- unable to import the pool $i"
-        exit 1
+        fatal_and_exit "-E- unable to import the pool $i"
       fi
     else
-      echo "-E- The local pool, '$i' doesn't seem to exist."
-      exit 1
+      fatal_and_exit "-E- The local pool, '$i' doesn't seem to exist."
     fi
   fi
 
@@ -59,7 +65,7 @@ do
 
   # Wait until the scrub completes, and check for any errors
   while true; do
-    zpool status $i | grep scan: | grep "in progress" > /dev/null 2>&1
+    zpool status $i 2>/dev/null | grep scan: | grep "in progress" > /dev/null 2>&1
     if [ $? == 0 ]; then
         # Our zpool scrub operation is still running
         # Wait until it is done before continuing
@@ -75,23 +81,21 @@ do
   echo "$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 $i found errors" $mailto 
+    zpool status $i | $mailx -s "zpool scrub $i found errors" "$mailto" 
   fi 
 
   # Export the local pool if told to do so
-  if [[ $import_export_backup_pool == 1 ]]; then
+  if [[ $import_export_backup_pool == 1 ]] && [[ "$i" =~ "$backup_pool" ]]; then
     zpool export $i
     if [ $? != 0 ]; then
-      fatal_and_exit "-E- unable to export the local pool $i"
+      echo "-E- unable to export the local pool $i"
+      zpool status $i | $mailx -s "zpool scrub unable to export the local pool $i" "$mailto"
     fi
   fi
 
-  # Update NFS mounts
-  filesystems=`zfs list -t filesystem | grep "^$i" | grep -v "$i/$i" | grep -v "^$i " | awk '{ print $1 }' | tr '\n' ' '`
-  zfs set sharenfs=on $filesystems
-
 done
 
-- 
2.34.1