[PVE-User] backup takes so long to finish

[Gilberto Nunes]

Well... This not justify all this low performance, since the VM previously
ran on another IBM machine with single SAS and backup task ran nicely.
Since the VM now running in high level enterprise Storage, I expected more
performance, if I am not wrong with that...


2014-08-27 14:13 GMT-03:00 Iosif Peterfi <iosif.peterfi at gmail.com>:

> Maybe you will have better performance if you split them. So keep the
> busiest database on IBM storage and put the others on USB. This way you
> share the I/O load.
>
> Regards,
> Iosif
>
>
> On Wed, Aug 27, 2014 at 7:09 PM, Gilberto Nunes <
> gilberto.nunes32 at gmail.com> wrote:
>
>> Unfortunately, I do not have such luxury by now... SSD is out of the
>> question, for a moment...
>> But I changed from USB device to SAS device, in hope to improve the I/O
>> performance...  But no success...
>> The VM itself, is running is SAS as well, since it hosted in an IBM
>> Storage...
>>
>> I'm still search the cause of issue...
>>
>> Thank you BTW...
>>
>>
>> 2014-08-27 14:04 GMT-03:00 Iosif Peterfi <iosif.peterfi at gmail.com>:
>>
>> Mitigate the I/O bottleneck by assigning different hard drives, even
>>> consider using enterprise grade ssd.
>>>
>>>
>>>
>>>
>>> On Wed, Aug 27, 2014 at 6:55 PM, Gilberto Nunes <
>>> gilberto.nunes32 at gmail.com> wrote:
>>>
>>>> Hum... At first moment, I thought I/O could being a trouble, since I
>>>> was ran backup in USB devices.
>>>> But now, I ran backup task on SAS disk! So performance and I/O is not
>>>> an issue here...
>>>> And, I can't shrink the file, because the entire disk is being used to
>>>> all databases as I described before...
>>>>
>>>> If somebody else has any other advice, I will appreciate...
>>>>  Thank you
>>>>
>>>>
>>>> 2014-08-27 13:47 GMT-03:00 Bart Lageweg | Bizway <bart at bizway.nl>:
>>>>
>>>>   High I/O when you backup ?
>>>>>
>>>>>
>>>>>
>>>>> Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you
>>>>> have a good backup!)
>>>>>
>>>>>
>>>>>
>>>>> *Van:* pve-user [mailto:pve-user-bounces at pve.proxmox.com] *Namens *Gilberto
>>>>> Nunes
>>>>> *Verzonden:* woensdag 27 augustus 2014 18:47
>>>>> *Aan:* pve-user at pve.proxmox.com
>>>>> *Onderwerp:* [PVE-User] backup takes so long to finish
>>>>>
>>>>>
>>>>>
>>>>> Hello
>>>>>
>>>>> I have a VM with Windows 2012 running nicely in PVE 3.2.
>>>>>
>>>>> This VM has a 300 GB disk size that was re-partition with 5 or 6
>>>>> different parts, in order to allocate different databases...
>>>>>
>>>>> The issue is that the backup task takes 6 hours to generate a lzo file
>>>>> with 13 GB size!
>>>>>
>>>>> However, I have another VM, which is Windows 2008 with disk 120 GB
>>>>> size.
>>>>>
>>>>> The backup makes 74 GB file of size, and takes approximately 30
>>>>> minutes!!!
>>>>>
>>>>> I can't see why the first task took so long time to finish!!!
>>>>>
>>>>> Can anybody assist me??
>>>>>
>>>>> Thanks
>>>>>
>>>>>
>>>>>
>>>>> Gilberto Ferreira
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> Gilberto Ferreira
>>>>
>>>>
>>>> _______________________________________________
>>>> pve-user mailing list
>>>> pve-user at pve.proxmox.com
>>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>>>>
>>>>
>>>
>>
>>
>>
>> Gilberto Ferreira
>>
>>
>


-- 
Obrigado

Cordialmente

Gilberto Ferreira


Konnecta TI Tecnologia - Sistemas de Virtualização, Soluções de
Armazenamento de Dados, Criação de SAN/NAS, Zimbra Mail Server, Implantação
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