[PVE-User] Images on CephFS?

[Thomas Lamprecht]

Hi,

On 9/25/19 3:46 PM, Mark Schouten wrote:
> Hi,
> 
> Just noticed that this is not a PVE 6-change. It's also changed in 5.4-3. We're using this actively, which makes me wonder what will happen if we stop/start a VM using disks on CephFS...

huh, AFAICT we never allowed that, the git-history of the CephFS
storage Plugin is quite short[0] so you can confirm yourself..
The initial commit did not allow VM/CT images neither[1]..

[0]: https://git.proxmox.com/?p=pve-storage.git;a=history;f=PVE/Storage/CephFSPlugin.pm;h=c18f8c937029d46b68aeafded5ec8d0a9d9c30ad;hb=HEAD
[1]: https://git.proxmox.com/?p=pve-storage.git;a=commitdiff;h=e34ce1444359ee06f50dd6907c0937d10748ce05

> 
> Any way we can enable it again?

IIRC, the rational was that if Ceph is used, RBD will be prefered
for CT/VM anyhow - but CephFS seems to be quite performant, and as
all functionality should be there (or get added easily) we could
enable it just fine.. 

Just scratching my head how you were able to use it for images if
the plugin was never told to allow it..

cheers,
Thomas

> 
> -- 
> Mark Schouten
> Tuxis B.V.
> https://www.tuxis.nl/ | +31 318 200208
> 
> ------ Original Message ------
> From: "Mark Schouten" <mark at tuxis.nl>
> To: "PVE User List" <pve-user at pve.proxmox.com>
> Sent: 9/19/2019 9:15:17 AM
> Subject: [PVE-User] Images on CephFS?
> 
>>
>> Hi,
>>
>> We just built our latest cluster with PVE 6.0. We also offer CephFS 'slow but large' storage with our clusters, on which people can create images for backupservers. However, it seems that in PVE 6.0, we can no longer use CephFS for images?
>>
>>
>> Cany anybody confirm (and explain?) or am I looking in the wrong direction?
>>
>> -- 
>> Mark Schouten <mark at tuxis.nl>
>>
>> Tuxis, Ede, https://www.tuxis.nl
>>
>> T: +31 318 200208
>>
>>
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