mg
e4e84d2218
python zu 3 rest zfs Postfix Co-authored-by: Michael Grote <michael.grote@posteo.de> Reviewed-on: mg/ansible#22 Co-Authored-By: mg <mg@noreply.git.mgrote.net> Co-Committed-By: mg <mg@noreply.git.mgrote.net>
67 lines
2.2 KiB
Bash
67 lines
2.2 KiB
Bash
#! /bin/bash
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{{ file_header | default () }}
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problems=0
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emailSubject="`hostname` - ZFS pool - HEALTH check"
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emailMessage=""
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# Health - Check if all zfs volumes are in good condition. We are looking for
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# any keyword signifying a degraded or broken array.
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condition=$(/sbin/zpool status | egrep -i '(DEGRADED|FAULTED|OFFLINE|UNAVAIL|REMOVED|FAIL|DESTROYED|corrupt|cannot|unrecover)')
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if [ "${condition}" ]; then
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emailSubject="$emailSubject - fault"
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problems=1
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fi
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# Capacity - Make sure pool capacities are below 80% for best performance. The
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# percentage really depends on how large your volume is. If you have a 128GB
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# SSD then 80% is reasonable. If you have a 60TB raid-z2 array then you can
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# probably set the warning closer to 95%.
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maxCapacity={{ zfs_extra_max_usage_health }}
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if [ ${problems} -eq 0 ]; then
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capacity=$(/sbin/zpool list -H -o capacity)
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for line in ${capacity//%/}
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do
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if [ $line -ge $maxCapacity ]; then
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emailSubject="$emailSubject - Capacity Exceeded"
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problems=1
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fi
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done
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fi
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# Errors - Check the columns for READ, WRITE and CKSUM (checksum) drive errors
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# on all volumes and all drives using "zpool status". If any non-zero errors
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# are reported an email will be sent out. You should then look to replace the
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# faulty drive and run "zpool scrub" on the affected volume after resilvering.
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if [ ${problems} -eq 0 ]; then
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errors=$(/sbin/zpool status | grep ONLINE | grep -v state | awk '{print $3 $4 $5}' | grep -v 000)
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if [ "${errors}" ]; then
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emailSubject="$emailSubject - Drive Errors"
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problems=1
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fi
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fi
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# Notifications - On any problems send email with drive status information and
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# capacities including a helpful subject line to root. Also use logger to write
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# the email subject to the local logs. This is the place you may want to put
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# any other notifications like:
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#
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# + Update an anonymous twitter account with your ZFS status (https://twitter.com/zfsmonitor)
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# + Playing a sound file or beep the internal speaker
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# + Update Nagios, Cacti, Zabbix, Munin or even BigBrother
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if [ "$problems" -ne 0 ]; then
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logger $emailSubject
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echo -e "$emailSubject \n\n\n `/sbin/zpool list` \n\n\n `/sbin/zpool status`" | mail -s "$emailSubject" {{ empfaenger_mail }}
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fi
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### EOF ###
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