Re: [PVE-User] PBS datastore

["Tonči Stipičević" <tonci@suma-informatika.hr>]

Yes, I'm aware of that too ...

Obviously this's  not been  good-practice and you do not have any 
recommended models/types ?

But they are very "practical" though :)

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. 13:36, Aaron Lauterer wrote:
>
>
> 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
>>>>
>>>>
>>>>
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>>>
>>
>