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February 24, 2023 06:01
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little script to keep the snapshot-count in check for my truenas. "frequently" went above ~10k as i replicate every hour. syncoid_cleanup.sh
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#!/bin/sh | |
ROOT="p0/bak/home" | |
frequently=4 | |
hourly=36 | |
daily=30 | |
monthly=3 | |
_remove_old_snaps() { | |
COUNT=$(echo "{$1}" |wc -l) | |
#echo "COUNT: ${COUNT}" | |
if [ "$COUNT" -gt "$2" ] | |
then | |
for snap in $(echo "$1"|tail -n +"$2"); do | |
#DUMMY | |
echo zfs destroy -v "$snap" | |
#zfs destroy -v "$snap" | |
done | |
fi | |
} | |
for DATASET in $(zfs list -r -H -o name "${ROOT}") | |
do | |
echo "${DATASET}" | |
PSNAPS=$(zfs list -H -t snapshot -o name "${DATASET}") | |
FREQUENTLY=$(echo "${PSNAPS}" | grep frequently) | |
_remove_old_snaps "$FREQUENTLY" $frequently | |
HOURLY=$(echo "${PSNAPS}" | grep hourly) | |
_remove_old_snaps "$HOURLY" $hourly | |
DAILY=$(echo "${PSNAPS}" | grep daily) | |
_remove_old_snaps "$DAILY" $daily | |
MONTHLY=$(echo "${PSNAPS}" | grep monthly) | |
_remove_old_snaps "$MONTHLY" $monthly | |
done |
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