[PVE-User] PBS datastore

[Tonči Stipičević]

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?

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
>>
>>
>>
>> _______________________________________________
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>