[arch-devops] Let's change our primary backup to a managed storage box

Sven-Hendrik Haase svenstaro at gmail.com
Mon Jun 29 20:12:28 UTC 2020

On 26.06.20 22:38, Sven-Hendrik Haase wrote:
> Hey all,
> I want to suggest we change our primary backup box to a managed box,
> namely a BX60 from Hetzner [0] for 40€/m with 10TB capacity. We
> currently have a SB35 with 2x3TB in a RAID1. The current box (vostok) is
> getting full and is sitting at 20% capacity remaining.
> The storage box supports Borg and so it's unlikely that we'll have to
> change our backup scheme.
> Why a BX60 and not a BX50 even though the capacity would currently
> suffice? I'd like to also start backing up the archive. The archive will
> become more relevant in Arch as reproducible builds gain more popularity
> and I think keeping the archive alive and well is an important part of
> that. We currently do not back up the archive for capacity reasons but
> we should start doing that. BX50 with its 5TB puts us too close to our
> projected needs (roughly 2.3TB (current effective backup size) + 2.3TB
> (archive)).
> Advantages of a BX60:
> - Less stuff to manage as Hetzner will handle disk failures and updates
> for us
> - More redundancy (FAQ says it can tolerate multiple disk failures while
> we can currently only handle a single disk failure)
> - Much higher capacity (about 3.4x as much)
> Disadvantages:
> - 10€ more per month
> - We'll have to migrate (though probably pretty easy to do as the backup
> stuff is pretty nicely ansibled)
> - Only 10 connections allowed at once (workable for us but worth mentioning)
> - We currently have no operating experience with storage boxes from Hetzner
> What do you think?
> Cheers,
> Sven
> [0] https://www.hetzner.de/storage/storage-box/bx60

Since there are no naysayers and I'd really like a full archive backup
soon, and since Bluewind told me in IRC that the boxes work well, I'll
just go ahead now get a BX60.

I'll then sync vostok to that box overnight and after verifying that I'm
able to read/write backups from all current backup clients on the new
box, I'll start decommissioning vostok. I won't delete any data or
cancel boxes without at least one other person checking that work, though.

Wish me luck!


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