[PVE-User] backup takes so long to finish

[Iosif Peterfi]

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
>
>
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