[zfs-discuss] Incremental snapshot cannot be received "cannot restore to XXXXX: destination already exists"

Richard Jahnel Richard.Jahnel at RealPage.com
Mon Dec 11 16:08:06 EST 2017


Below is a sample of the script that includes automatic snapshot name generation.

#Get and set day and hour for NOW and PAST
NOW=$(date +"%a%d-%H")
PAST=$(TZ=GMT+125 date +"%a%d-%H")
# set variables
svol="poolnamehere/filesystemorzvolnamehere"
# Destroy the prior $PAST snapshot
echo "Destroying $svol@$PAST"
/sbin/zfs destroy $svol@$PAST
# Create the Snapshot
echo "Creating $svol@$NOW"
/sbin/zfs snapshot $svol@$NOW

-----Original Message-----
From: zfs-discuss [mailto:zfs-discuss-bounces at list.zfsonlinux.org] On Behalf Of Richard Laager via zfs-discuss
Sent: Monday, December 11, 2017 2:58 PM
To: zfs-discuss at list.zfsonlinux.org
Subject: Re: [zfs-discuss] Incremental snapshot cannot be received "cannot restore to XXXXX: destination already exists"

On 12/11/2017 02:40 PM, Richard Elling via zfs-discuss wrote:
> Even better solutions include metadata as user properties and don’t
> mangle the name.

How would you name snapshots then? Incrementing integer?

--
Richard
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