Just for compare, the very same backup from same VM takes 50 minutes, on previously scenario, I meant, run in a single IBM M4 server with SAS disks... Now, in the Storage and an IBM x3250 M4 server, with 128GB of memory, takes 6 hours! I can't understand why! So weird!
2014-08-27 14:21 GMT-03:00 Gilberto Nunes <gilberto.nune...@gmail.com>: > 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.pete...@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.nune...@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.pete...@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.nune...@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 <b...@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-boun...@pve.proxmox.com] *Namens >>>>>> *Gilberto >>>>>> Nunes >>>>>> *Verzonden:* woensdag 27 augustus 2014 18:47 >>>>>> *Aan:* pve-user@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@pve.proxmox.com >>>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >>>>> >>>>> >>>> >>> >>> >>> >>> Gilberto Ferreira >>> >>> >> > > > Gilberto Ferreira >
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