Slow HDD with proxmox 1.4

[Dark_Element]

I am running two virtual machines, both are win2003
my system is
Core I7 920 cpu, 2x1TB HDD on a RAID setup,
the problem is that i'm only getting transffer speeds up to ~10MB/s on the virtual machines (VM is on IDE connectors) specs:

Version (package/version/build)	pve-manager/1.4/4403

Kernel Version	Linux 2.6.24-9-pve #1 SMP PREEMPT Tue Nov 17 09:34:41 CET 2009

any help will be appreciated.

 

[tom]

I am running two virtual machines, both are win2003
my system is
Core I7 920 cpu, 2x1TB HDD on a RAID setup,
the problem is that i'm only getting transffer speeds up to ~10MB/s on the virtual machines (VM is on IDE connectors) specs:

Version (package/version/build)    pve-manager/1.4/4403

Kernel Version    Linux 2.6.24-9-pve #1 SMP PREEMPT Tue Nov 17 09:34:41 CET 2009

any help will be appreciated.

pls give more details your hardware:

• Raid controller type
• Network card
• Results of 'pveperf' - run when your server is not under load

and about your VM:

• post your VMID.conf (see /etc/qemu-server/VMID.conf)

 

[Dark_Element]

Raid controller type : software
Network card: Dual Intel® 82574L Gigabit Ethernet
Controller

i changed the server to one with a diffrent HDD and 12GB ram and i am on debian now

Version (package/version/build) pve-manager/1.5/4627
Kernel Version Linux 2.6.24-10-pve #1 SMP PREEMPT Tue Dec 29 10:16:15 CET 2009

pveperf:

CPU BOGOMIPS: 42557.97
REGEX/SECOND: 425277
HD SIZE: 9.92 GB (/dev/md1)
BUFFERED READS: 80.84 MB/sec
AVERAGE SEEK TIME: 14.47 ms
FSYNCS/SECOND: 192.88
DNS EXT: 39.51 ms
DNS INT: 2.15 ms (ovh.net)

VMID.conf:

name: big-vps
ide2: local:iso/server2003cd1.iso,media=cdrom
bootdisk: ide0
vlan1: rtl8139=8A:F0:40:77:14:B0
ostype: w2k3
ide0: local:102/vm-102-disk-1.qcow2
memory: 4000
onboot: 1
sockets: 1
cores: 8

so what do you think the problem can be?

 

[yatesco]

Ah, another OVH machine (I have several as well).

I don't think their hardware RAID cards are particularly impressive. It looks like a kimsufi though - I managed about 500 FSYNCs on a RAID5 card on their kimsufi.

You might be interested in http://forums.ovh.co.uk/showthread.php?t=3534

Having said all of that, 10MB/sec is pretty slow. I would do the following:

- create a large file, say 1GB (dd if=/dev/zero bs=1M count=1024 of=/tmp/1G) and then time how long it takes to copy on the host (time `cp /tmp/1G /tmp/1G.copy; sync`) - don't forget the sync at the end!
- copy that file into the windows machine (use winscp and sftp it) and then time how long it takes to copy

if the windows machine takes more than twice as long (picking figures out of the air) then I would be worried. Also, you might find installing the virtio drivers improves things significantly.

Post your timings - they aren't exactly a scientific experiment, but they should be englightening