[ovirt-devel] Interacting with VDSM storage without oVirt Engine

[Martin Sivak]

Hi,

I do not remember exacly, but you might check the source code of
hosted engine's VdsmBackend where we do that too.

https://gerrit.ovirt.org/gitweb?p=ovirt-hosted-engine-ha.git;a=blob;f=ovirt_hosted_engine_ha/lib/storage_backends.py;h=f2fbdc43d0e4afd7539a3a1de75de0cb07bdca9d;hb=a012f184584af20d3dba8038d73b8d9b447af7b3

I think you are missing the prepareImage call.

Regards

--
Martin Sivak
SLA / oVirt

On Wed, May 25, 2016 at 1:44 AM, Hayley Swimelar <hayley at linbit.com> wrote:
> Hello all,
>
> Like the title says, I need to work with VDSM's storage layer without
> involving the engine.
>
> Presently, I'm testing this with NFS domains and have been able to use
> vdsClient to create, attach, and activate a new storage domain, but I have
> not been able to create a new image or volume.
>
> Here are the commands I ran to get to this step, starting with a nfs volume
> already mounted on the machine I ran the commands on.
>
> ----
> vdsClient -s host_name createStorageDomain 1
> 97338d5c-9b6f-1859-b827-e977ed082e53 cli_domain storage_server:/data
>
> vdsClient -s host_name attachStorageDomain
> 97338d5c-9b6f-1859-b827-e977ed082e53 00000001-0001-0001-0001-00000000033c
>
> vdsClient -s host_name activateStorageDomain
> 97338d5c-9b6f-1859-b827-e977ed082e53 00000001-0001-0001-0001-00000000033c
>
> vdsClient -s frodo createVolume 97338d5c-9b6f-1859-b827-e977ed082e53
> 00000001-0001-0001-0001-00000000033c 0288f410-71f1-4b7d-bdb7-e815a93e34ef
> 53690000000 5 1 2 96d7726c-6969-40a5-84bd-0925496b6051 cli_volume
> ----
>
> The last command outputs a new UUID, but there is nothing under
> /rhev/data-center/00000001-0001-0001-0001-00000000033c/97338d5c-9b6f-1859-b827-e977ed082e53/images/
> directory.
>
> If I pass createVolume an existing image/storage domain UUID, the command
> still outputs a new UUID, but nothing changes under the images directory.
>
> Is there a step that I am missing somewhere in this process?
>
> --
> Hayley Swimelar
> LINBIT | Keeping the Digital World Running
> DRBD — Corosync — Pacemaker
> +1-503-573-1262 x212
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