Proxmox 3.1 Slow iSCSI performancy Synology RS3614XS

[sander93]

Hello,

i have the following setup
1 x Synology RS3614XS, 4 x gigabit LACP which work fine, 8 x WD2002FAEX Black 2 TB in Raid 6
1 x HP V1910 Switch only for storage usage
3 x Proxmox 3.1 node with separate gigabit NIC voor iSCSI storage

MTU of the Sinolog, Proxmox node and switch are set to 9000 with jumbo frames enabled.

now the max speed i get in a vm is about 40 mb/s read and 50 mb/s write

I have searched multiple forums but i don't find an working answer which helps me.

Who can help me? If you need more information let me know!

Already thank you.

Sander

 

[sander93]

i have a sata disk to one of the virtual machines and that disk get a disk speed of 82 mb/s read and 77 mb/s write by seq test
by a 512k test i get 60 mb/s read and 97 mb/s write!

Can IDE be the problem?

 

[spirit]

Can IDE be the problem?

use virtio disk, or maybe virtio-scsi (which can do some passthrough with scsi storage)

 

[past]

Hi, did you solve this problem?