Added logging to zfs-scrub

[zfs-ubuntu/.git] / zfs-scrub

diff --git a/zfs-scrub b/zfs-scrub
index f022a54d1c86272edd2c664e2d2ddd8d29504d09..dffe0803941b7911a0aff4dbe7861914c5279b13 100755 (executable)
--- a/zfs-scrub
+++ b/zfs-scrub
@@ -1,19 +1,30 @@
 #!/bin/bash
 
 # Author: Alan J. Pippin
-# Description: This script will attempt to scrub each zfs pool
-#              given to it in the for loop. This script ensures
-#              That only 1 scrub operation is running at any given time.
-#              This serializes the zfs scrub process for each pool.
+# 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.
 
+exec >> /var/log/zfs/zfs-scrub.log 2>&1
+
+PATH=/usr/sbin:/sbin:/etc/bin:$PATH
+
+pools="$*"
 maxsleeptime=360
+mailto=root
+
+if [ -z "$pools" ]; then
+   echo "-E- Usage: $0 <pools>"
+   exit 1
+fi
 
-for i in tank storage
+for i in $pools
 do
-  # Check to see if this zfs filesystem has a scrub being performed on it now.
+  # 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
-    /sbin/zpool status | grep scrub: | grep "in progress" > /dev/null 2>&1
+    zpool status | grep scrub: | grep "in progress" > /dev/null 2>&1
     if [ $? == 0 ]; then
         # Another zpool scrub operation is already running
         # Wait until it is done before continuing
@@ -25,7 +36,34 @@ do
     fi
   done
 
-  echo "Scrubing zfs pool $i"
-  /sbin/zpool scrub $i
+  date=`date`
+  echo "$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 | grep scrub: | 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 scrub: | grep "with 0 errors" > /dev/null 2>&1
+  if [ $? != 0 ]; then
+    # The scrub found errors
+    zpool status $i | /usr/bin/mailx -s "zpool scrub $i found errors" $mailto 
+  fi 
 
 done
+
+