[DRBD-user] Troubles with Linstor on Proxmox/ZFS

Massimo De Nadal maxx at digital-system.it
Thu Mar 28 09:02:25 CET 2019

> From: Gábor Hernádi <gabor.hernadi at linbit.com>
> To: drbd-user at lists.linbit.com
> Date: Wed, 27 Mar 2019 15:36:31 +0100
> Subject: Re: [DRBD-user] Troubles with Linstor on Proxmox/ZFS

> However, regarding your second issue, from what I see without the full
> ErrorReport the mentioned external command returned something that
> could
> not be parsed as a number. That is likely something like a '-' instead
> of a
> number in the output table of 'zfs list ...'.
> Can you please run that 'zfs list -H -p -o name,used,volsize,type -t
> volume,snapshot' command on pve-DEV1 and pve-DEV2 and see if there is
> something suspicious?
> Otherwise feel free to send me the ErrorReport from that failed
> 'resource
> create ...' command, or what might be better is to simply open a ticket
> in https://github.com/LINBIT/linstor-server/issues and attach the
> ErrorReport  there.

Hi Gabor,

thank you very much for your answer.
You are right about the "zfs list" output. 

My zpool is "shared" with non-drbd datasets, so many datasets doesn't have a volsize:

root at pve-DEV1 ~ # zfs list -H -p -o name,used,volsize,type -t volume,snapshot
tank/subvol-106-disk-0 at __replicate_106-0_1553759101__   0       -       snapshot
tank/subvol-301-disk-0 at __replicate_102-0_1540474206__   44261888        -       snapshot
tank/subvol-301-disk-0 at TEST     13796352        -       snapshot
tank/subvol-301-disk-0 at snap-2018-12-31T1845     45129216        -       snapshot

Is Linstor drbd-over-zfs implementation designed to be used with exclusively dedicated zpools ?

In my opinion it's very important to be able to share the same zpool between drbd replicated and not-drbd replicated payloads.
If you think it's useful I'll open a ticket on github with further details.

Thank you very much.
Massimo De Nadal

Digital System srl
Via E.B. Mondin 7 - 32100 - Belluno (Italy)
tel. +39.0437.296539 - fax +39.0437.917154
sip:maxx at digital-system.it
email:maxx at digital-system.it
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