[PVE-User] Proxmox + ZFS: Performance issues

[Laurent Dumont]

Apologies, wrong thread!

On 4/24/2016 6:11 PM, Laurent Dumont wrote:
> Just to check, since I don't have a key for the Enterprise 
> repositories, should I use the repositories from here ? : 
> http://pve.proxmox.com/wiki/Package_repositories#Proxmox_VE_No-Subscription_Repository
>
> Thanks,
>
> Laurent
>
> On 4/24/2016 3:03 PM, Ralf wrote:
>> Some Western Digital Green stuff:
>>
>> [    2.406419] scsi 2:0:0:0: Direct-Access     ATA      WDC WD5000AADS-0
>> 0A01 PQ: 0 ANSI: 5
>> [    2.406766] sd 2:0:0:0: [sda] 976773168 512-byte logical blocks: (500
>> GB/466 GiB)
>> [    2.406794] sd 2:0:0:0: Attached scsi generic sg0 type 0
>> [    2.406845] sd 2:0:0:0: [sda] Write Protect is off
>> [    2.406848] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
>> [    2.406884] sd 2:0:0:0: [sda] Write cache: disabled, read cache:
>> enabled, doesn't support DPO or FUA
>> [    2.407121] scsi 3:0:0:0: Direct-Access     ATA      WDC WD5000AADS-0
>> 0A01 PQ: 0 ANSI: 5
>> [    2.407342] sd 3:0:0:0: [sdb] 976773168 512-byte logical blocks: (500
>> GB/466 GiB)
>> [    2.407417] sd 3:0:0:0: Attached scsi generic sg1 type 0
>> [    2.407424] sd 3:0:0:0: [sdb] Write Protect is off
>> [    2.407428] sd 3:0:0:0: [sdb] Mode Sense: 00 3a 00 00
>> [    2.407459] sd 3:0:0:0: [sdb] Write cache: disabled, read cache:
>> enabled, doesn't support DPO or FUA
>>
>> According to google, that's a Western Digital Green 500GB, S-ATA 300,
>> 32MiB Cache
>>
>>    Ralf
>>
>>
>> On 04/24/2016 08:57 PM, Christian Kivalo wrote:
>>> Am 24. April 2016 19:51:21 MESZ, schrieb Ralf 
>>> <ralf+pve at ramses-pyramidenbau.de>:
>>>> Hi,
>>>>
>>>> zil.. That's an additional ZFS cache, right?
>>>> Shouldn't it be slightly faster, even without additional caches?
>>> The ZIL is used for writes. Not for reads.
>>>
>>> That will not help with your slow reads.
>>>
>>> It should be faster even without caches.
>>>
>>> What drives are you using?
>>>
>>
>>
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