[PVE-User] VM issue when Backup over NAS,

[Muhammad Yousuf Khan]

here you go

CPU BOGOMIPS:      21332.18
REGEX/SECOND:      521349
HD SIZE:           94.49 GB (/dev/mapper/pve-root)
BUFFERED READS:    25.19 MB/sec
AVERAGE SEEK TIME: 32.31 ms
FSYNCS/SECOND:     3.24
DNS EXT:           303.86 ms
DNS INT:           320.81 ms (com)

please tell me what is the ideal approach for controlling the IO delay ,
ISCSI or local Storage.
right now IO delay is b/w 35 to 50 percent. how can i see the per VM IO so i
can manually check what is going on inside rather checking every single VM
one by one


On Tue, Jun 14, 2011 at 6:30 PM, Martin Maurer <martin at proxmox.com> wrote:

>  Looks like your storage/network is overloaded. Try reducing the vzdump
> bandwith (see ‘man vzdump’).
>
>
>
> Also post the output of ‘pveperf’ from your Proxmox VE host and give
> details about the used storage/raid hardware (Proxmox VE host and
> Openfiler).
>
>
>
> Martin
>
>
>
> *From:* pve-user-bounces at pve.proxmox.com [mailto:
> pve-user-bounces at pve.proxmox.com] *On Behalf Of *Muhammad Yousuf Khan
> *Sent:* Dienstag, 14. Juni 2011 13:49
> *To:* pve-user at pve.proxmox.com
> *Subject:* [PVE-User] VM issue when Backup over NAS,
>
>
>
> Openfiler : 2.99
>
> NAS LAN : 1GB (through put is 25% i don't know why, at least acceptable)
>
> RAM :4gb
>
>
>
> Proxmox : 1.8
>
> Quadcore : 2.66
>
> Ram : 8GB
>
> Proxmox LAN : 1G
>
>
>
> I am using Openfiler as a NAS box. and using NFS and ISCSI both as a
> storage medium. but i have noticed one thing when i backup a VM on NFS and
> also copy a huge file inside Running VM which is hosted on ISCSI on same
> openfiler box. My VM get stuck. i can move the copy window in running VM but
> can not close task bar or copy window. until the backup task of a VM gets
> finishes then copy inside VM continue and VM gets usable.
>
>
>
> how can i over come that issue. for instance if i run backup backup of my
> data which is inside VM it will again HANG and thing may unavailable to
> users during backup which is not an option
>
> any help?
>
>
>
>
>
> Thanks you
>
> MYK
>
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