[PVE-User] backup takes so long to finish

[Gilberto Nunes]

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.proxmox.com/pipermail/pve-user/attachments/20140827/63c5abe9/attachment.htm>