[PVE-User] ZFS: Limited usages ?

Christian Kivalo ml+pve-user at valo.at
Sat Apr 28 22:51:43 CEST 2018


On 2018-04-28 17:52, Petric Frank wrote:
> Hello,
> 
> Am Samstag, 28. April 2018, 07:14:25 CEST schrieb Christian Kivalo:
>> On April 27, 2018 11:30:09 PM GMT+02:00, Petric Frank <pfrank at gmx.de> 
>> wrote:
>> >> > running PVE GUI 5.1-51
>> >> >
>> >> > I've mounted a ZFS storage (Datacenter -> Storage).
>> >> >
>> >> > Is there a reason why the GUI allows to select Disk Image and
>> >
>> >Container
>> >
>> >> > only ?
>> >> >
>> >> > No Backup, ...
>> >> >
>> >> > In my means ZFS is a file system like for example ext4.
>> >>
>> >> you can create a dataset ("zfs create ...") and then configure it as
>> >> directory storage with appropriate content types if you want to
>> >
>> >backup
>> >
>> >> to a ZFS dataset.
>> >
>> >The mounted ZFS volumes are datasets. Created by zfs create
>> ><Pool>/<Dataset>.
>> >The current type is filesystem.
>> >
>> >I'm not an expert in ZFS - how to set a content type on a dataset ?
>> 
>> In proxmox go to Datacenter -> Storage, select your storage and click 
>> on
>> Edit and there you can select to content types for this storage.
> 
> Here i am presented with a list which contains "Disk Images" and 
> "Container"
> only !
> No other selections were possible because they are not listed. "ISO 
> image",
> "Container Template" and "VZDump backup file" are NOT in the drop down 
> list.
> 
> Does this limitation have a the reason - either intentional or a bug ?
See https://pve.proxmox.com/wiki/Storage and the links to the storage 
types at the end of that site.

On a ZFS storage proxmox creates ZVOLs to storage VM disk data, it's not 
used as file based storage and thus is not suitable as a backup target.
To use a ZFS filesystem as backup target you need to create "Directory" 
type storage in proxmox which points to a directory on your ZFS 
filesystem. For this storage type you can select the content type 
"backup".

> 
> regards
> 
> 
> 
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-- 
  Christian Kivalo


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