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zfs-backup
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will now receive with the '-s' flag to enable resuming provided the system supports it

This commit is contained in:
Tamás Gérczei 2019-08-08 10:21:39 +02:00
parent ba5a8a08d7
commit 881f9ace72
1 changed files with 17 additions and 2 deletions
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19
zfs-backup.sh
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@ -107,7 +107,7 @@ function backup() {
R_SNAPMODIFIER="I $(dirname ${DATASET})/$(basename ${R_SNAPSHOTS[*]:(-1)})"
fi
# send any previous snapshots
/usr/sbin/zfs send -R${RAW_MOD}${R_SNAPMODIFIER} ${LASTSNAP} | ${RMOD} /usr/sbin/zfs recv -Feuv ${SAVETO} 2>&1 >> ${LOGFILE}
/usr/sbin/zfs send -R${RAW_MOD}${R_SNAPMODIFIER} ${LASTSNAP} | ${RMOD} /usr/sbin/zfs recv -Feu${RESUME_MOD}v ${SAVETO} 2>&1 >> ${LOGFILE}
}
else
# ensure this does not remain in effect
@ -115,7 +115,7 @@ function backup() {
fi
# send backup
/usr/sbin/zfs send -R${RAW_MOD}${SNAPMODIFIER} ${NEWSNAP} | ${RMOD} /usr/sbin/zfs recv -Feuv ${SAVETO} 2>&1 >> ${LOGFILE}
/usr/sbin/zfs send -R${RAW_MOD}${SNAPMODIFIER} ${NEWSNAP} | ${RMOD} /usr/sbin/zfs recv -Feu${RESUME_MOD}v ${SAVETO} 2>&1 >> ${LOGFILE}
# if replication is unsuccessful, omit the aging check so as to prevent data loss
if [ $? -eq 0 ]
@ -233,6 +233,21 @@ if [[ "$PLATFORM_VERSION" =~ ^joyent ]]
logger -t $(basename ${0%.sh}) -p user.notice "ZFS encryption is not supported on $PLATFORM_VERSION"
ENCRYPTION_FEATURE="disabled"
fi
EXTENSION_FEATURE=$(/usr/sbin/zpool get -Ho value feature@extensible_dataset ${POOL_NAME})
if [ $? -ne 0 ]
then
# feature unknown, outdated PI
logger -t $(basename ${0%.sh}) -p user.notice "extensible datasets are not supported on $PLATFORM_VERSION"
EXTENSION_FEATURE="disabled"
else
# check if resuming is supported
if [ $EXTENSION_FEATURE == "active" ]
then
# extensible_dataset feature available
RESUME_MOD="s"
fi
fi
fi
# determine current timestamp