>Number:         150228
>Category:       bin
>Synopsis:       [PATCH] /etc/periodic/daily/800.scrub-zfs errors with faulted 
>zpools
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Sep 02 15:40:06 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Josh Paetzel
>Release:        9.0-CURRENT
>Organization:
>Environment:
FreeBSD tcbug.ixsystems.com 9.0-CURRENT FreeBSD 9.0-CURRENT #2: Mon Jul 12 
22:22:49 CDT 2010     jpaet...@ix.tcbug.org:/usr/obj/usr/src/sys/IX  amd64
>Description:
800.scrub-zfs is a periodic script you can enable to perform periodic scrubs of 
ZFS filesystems.  If you have faulted zpools the script generates sh errors due 
to some of the zpool commands generating no output.

Faulted zpools can happen for reasons other than hardware failure, for example 
if you use ZFS on removable devices when they are unplugged zpool status will 
show them as faulted.
>How-To-Repeat:
Put ZFS on a removable device, export and detach it from the system.
# echo 'daily_scrub_zfs_enable="YES"' >> /etc/periodic.conf
# /etc/periodic/daily/800.scrub-zfs
>Fix:
Apply attached patch

Patch attached with submission follows:

Index: 800.scrub-zfs
===================================================================
--- 800.scrub-zfs       (revision 212149)
+++ 800.scrub-zfs       (working copy)
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $FreeBSD$
+# $FreeBSD: src/etc/periodic/daily/800.scrub-zfs,v 1.1 2010/06/15 08:58:16 
netchild Exp $
 #
 
 # If there is a global system configuration file, suck it in.
@@ -24,13 +24,17 @@
 
        for pool in ${daily_scrub_zfs_pools}; do
                # sanity check
-               zpool list ${pool} >/dev/null 2>&1
+               _status=`zpool list ${pool} | sed -n -e '$p'` >/dev/null 2>&1
                if [ $? -ne 0 ]; then
                        echo "   WARNING: pool '${pool}' specified in"
                        echo "            
'/etc/periodic.conf:daily_scrub_zfs_pools'"
                        echo "            does not exist"
                        continue
                fi
+               if echo ${_status} | grep FAULTED >/dev/null 2>&1; then
+                       echo "Skipping faulted pool: ${pool}"
+                       continue
+               fi
 
                # successful only if there is at least one pool to scrub
                rc=0


>Release-Note:
>Audit-Trail:
>Unformatted:
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