[OpenIndiana-discuss] Is time-slider usable for most folks

[Stephan Althaus]

On 11/25/24 17:08, Udo Grabowski (IMK) wrote:
> On 25-11-2024 15:10, hput wrote:
>> Trying to use the time slider... evertime I start it up and
>> authenticat, when I actuall try to set "custom" and adjust something
>> It freezes with a sign saying `configuring' but never finishes.
>>
>> It apparently cannot by killed with a kill -KILL command on the pid,
>> nor canceled by using the cancel or ok buttons
>>
>> What are people using to automate snapshots?
>>
>> Is the time-slider actually usable for most folks?
>
> Not using timeslider, but scripts called daily that roll our
> filesystem snapshots:
> ======================================================================
> #!/sbin/sh
> root=`/sbin/mount | nawk '/^\/ /{print $3;}'`
> fsys="$root"
> if [ -n "$1" ] ; then
>    fsys=$1
> fi
> roll=3
> if [ -n "$2" ] ; then
>    if (echo $2|grep '^[0-9]*$'>/dev/null); then
>       roll=$2
>    else
>       echo "$2 is not a number."
>       exit 1
>    fi
> fi
> if (zfs list $fsys >/dev/null) ; then
>    oldest=`zfs list -r -t snapshot $fsys| cut -d' ' -f1 | grep 
> $fsys'@[0-9]\{4,4\}-[0-1][0-9]-[0-3][0-9]_[0-2][0-9]:[0-5][0-9]:[0-6][0-9]'|sort 
> -r|tail +$roll`
>    if [ -n "$oldest" ] ; then
>        for z in $oldest; do zfs destroy $z ;done
>    fi
>    zfs snapshot $fsys@`date '+%F_%T`
> else
>    echo "$fsys is not a ZFS filesystem, cannot snapshot."
>    exit 1
> fi
> =====================================================================
> Called without arguments, it rolls whatever serves /, with argument 1
> a selected filesystem, argument 2 gives the amount of snapshots to
> retain (default 3).
>
> For /home and other special stuff, we use variants like this (which
> calls script above):
> =====================================================================
> #!/sbin/sh
> # keep a lot snapshots (called hourly)
> rolls=26
> # users to roll (almost)
> users=\(/`cat /local/users | sed 's% \{1,\}%/|/%g'`/\)
> # users that work at night want hourly snapshots then;
> # rolled in a different script with day+night cron schedule
> night='(/nightuser|/othernightuser)'
> # don't roll these
> exclude='(/Dontrollme|/Dontrollmetoo)'
> # next one line
> homes=`zfs list | grep -v @ | cut -d' ' -f1 |egrep "$users"|egrep -v 
> $exclude|egrep -v $night`
> for h in $homes; do
>     /imksun/bin_rootcsh/roll_snapshot $h $rolls
> done
> =====================================================================
>
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Hi!

I'm using zrepl. May take an hour to set up first time (examples are 
available).
It can not only create snapshots but create also backups accordingly..

Regards,

Stephan