Re: [PVE-User] PBS datastore

[Aaron Lauterer <a.lauterer@proxmox.com>]

On 2/7/22 12:24, Tonči Stipičević wrote:
> Thank you Aaron,
> 
> this atribut "small" is blocking point ... like you said it is hard to find sata disk under 250G
> 
> I was also thinking about 2 x sata-dom 32G/64G   for zfs boot ? Does it make any sense (performance/relayibilty-wise?

SATA DOMs need to be considered carefully. If they can last long enough, then why not. But if they are just cheap SSDs that will wear out fast... well.

> 
> Ok , today I'm gonna install PBS on 4x2T (disks, not ssds) zfs raid10 and create one new dataset in /rpool  -> /rpool/databck    ...  So , the PBS itself and datastore will reside on the same pool ...  Then I'll make some copmarison tests (backup/restore)  and report back some relevant results  ...  I'd like to avoid PBS on its own pool because this SuperMicro 721 case has only 4 disk slots , a additional ones (2) have to be connected directly to MB ...
> 
> 
> 'till then
> 
> BR
> 
> Tonci
> 
> srdačan pozdrav / best regards
> 
> Tonči Stipičević, dipl. ing. elektr.
> direktor / manager
> 
> SUMA Informatika d.o.o., Badalićeva 27, OIB 93926415263
> 
> Podrška / Upravljanje IT sustavima za male i srednje tvrtke
> Small & Medium Business IT Support / Management
> 
> mob: 091 1234003
> www.suma-informatika.hr
> 
> On 07. 02. 2022. 09:44, Aaron Lauterer wrote:
>> A PBS datastore is just a directory somewhere.
>>
>> If you set up the system on a RAID 10 and want to use that as well for the datastore, I would create a new ZFS dataset for the datastore. This allows you to change certain ZFS properties on that dataset specifically.
>>
>> There are a few things to consider if you want to have the OS on the same disks as the datastore.
>> How fast are the disks? HDDs or SSDs?
>> If they are HDDs, then having the OS on separate disks is a good idea because HDDs will already be having a hard time to provide the IOPS for decent performance. If they are *decent* SSDs, you should be fine.
>>
>> No idea how easy it is to get stuff in Croatia, but this should give you some ideas: https://geizhals.eu/?cat=hdssd&xf=2028_256~4643_Power-Loss+Protection~4832_1~4836_2&sort=r
>>
>> 250 GiB is plenty of the OS, but anything smaller is hard to find or of dubious quality ;)
>>
>> Cheers,
>> Aaron
>>
>>
>> On 2/7/22 01:10, Tonči Stipičević wrote:
>>> I'm planning to use SUPERMICRO 721 box (4 x 2T sata) as PBS
>>>
>>> So, if I create zfs10 raid as boot drive , I have no more disks left for datastore, right ?
>>>
>>> BUT, is it possible to make directory on this / boot drive i.e. /mnt/datastore   and attach it as datastore ?   Is that a way-to-go and is there any disadvantages against separate 2 x 240g ssd as boot and 4 x 2T sata (zfs raid 10 ) for datastore?
>>>
>>> Actually I'ma having hard time finding 2 x 2,5" small  sata drives for boot ....
>>>
>>>    Thank you very much in advance
>>>
>>> BR
>>>
>>> Tonci
>>>
>>> srdačan pozdrav / best regards
>>>
>>> Tonči Stipičević, dipl. ing. elektr.
>>> direktor / manager
>>>
>>> SUMA Informatika d.o.o., Badalićeva 27, OIB 93926415263
>>>
>>> Podrška / Upravljanje IT sustavima za male i srednje tvrtke
>>> Small & Medium Business IT Support / Management
>>>
>>> mob: 091 1234003
>>> www.suma-informatika.hr
>>>
>>>
>>>
>>> _______________________________________________
>>> pve-user mailing list
>>> pve-user@lists.proxmox.com
>>> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>>
>