[PVE-User] prox storage replication <> iscsi multipath problem

Wolfgang Link w.link at proxmox.com
Fri Jul 7 07:57:05 CEST 2017

Hi Tonci,

I guess it is the network traffic.
You should limited the replica speed or use a separate Network.

On 07/07/2017 07:35 AM, Tonči Stipičević wrote:
> Hi to all,
>     I'm testing pvesr and it works correct so far and is big step ahead
> regarding migration/replication w/o shared storage. Actually that is
> something I was really waiting for , because it is easier to find
> neighborhood with two (only) server than two servers with shared
> storage. This is the way that one host can really back the other one up
> (since sync frequency is fine-tunable)
>     But I do have problem with some kind of collisions. My test lab has
> 3 hosts and one freenas shared storage. The connection in between is
> iscsi-target-multipath , so each node (incl freenas as shared storage ->
> lvm) has 3 nics . In order to test and play with pvesr I created zfspool
> on each host using local hard drive (1 drive -> one zfs volume ... no
> redundancy etc) and storage replication was working fine . But after a
> while iscsi-multipath connections are still on but  my shared lvm iscsi
> freenas storage disappears .  The only way I was able to got it back was
> deleting all pvesr jobs and  destroying zfs pools on each node.
> I repeated this scenario more time times but the result was the same
> I'm aware that this scenario ( shared storage and storage replication )
> is not kind a usual (but it should be possible) but I'm still wondering
> why this pvesr killed my  freenas-iscsi target ?
> Thank you in advance
> Best regards
> Tonci

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