[Borgbackup] Reducing backup times for raw VM images, with zfs send?

[Bzzzz]

On Thu, 19 May 2022 21:02:41 +0200
Thorsten Schöning <tschoening at am-soft.de> wrote:

> Guten Tag Bzzzz,
> am Donnerstag, 19. Mai 2022 um 20:52 schrieben Sie:
> 
> > Sooo, it'll take some time to find the good chunk sizes for your
> > case
> > - may be you should open another thread, asking people who backup
> > VMs which values they are using.
> 
> I'm using Borg with default settings to backup multiple differently
> sized VMs, with different usage like file hosting, SVN, embedded
> databases, BTRFS snapshots etc. Overall size is around 950 GiB of data
> and backup size is between 2 and 3,5 hours mostly. Things heavily

Not bad, not bad at all :)

> depend on changes, load on the backup target NAS etc. I'm reading from
> SSDs, forwarding thourhg unkonw LAN speed using SSH to some NAS-like
> box with not guaranteed speed.
> 
> Doesn't sound that slow to me.
> 
> Mit freundlichen Grüßen
> 
> Thorsten Schöning

Jean-Yves