Hi Paolo,
Am 10.08.2012 14:39, schrieb Paolo Bonzini:
Il 10/08/2012 14:35, Stefan Priebe - Profihost AG ha scritto:
One way to activate passthough is via scsi-generic:
Example:
-device lsi -device scsi-generic,drive=MyISCSI \
-drive file=iscsi://10.1.1.125/iqn.ronnie.test/1,if=none,id=MyI
When i do this the guest system always uses the sym53c8xx kernel module.
This results in 70 iops instead of 30000 iops. Is this really correct
that it uses the very old sym53c8xx kernel module for this device?
used start command:
http://pastebin.com/raw.php?i=23fkaQgc
Just replace lsi with virtio-scsi-pci again. Also, using scsi-block
instead of scsi-generic should have better performance, but I'm not sure
Ronnie tested it with libiscsi.
I tried this earlier but this results in:
kvm: -device scsi-block,drive=drive-scsi0: scsi-block: INQUIRY failed
kvm: -device scsi-block,drive=drive-scsi0: Device 'scsi-block' could not
be initialized
Greets,
Stefan
