Re: Better to use iSCSI on host or guest?

2011-06-14 Thread Avi Kivity
On 06/13/2011 10:00 PM, Emmanuel Noobadmin wrote: On 6/14/11, Avi Kivitya...@redhat.com wrote: My gut feeling is to do iscsi in the host. I guess it's best to measure though. Please post your findings if you do that. Any suggestions or recommendations as to how/what should I be measuring

Better to use iSCSI on host or guest?

2011-06-13 Thread Emmanuel Noobadmin
I'm planning to use iSCSI targets (over gigabit VLANs) for KVM guest disks. The question I'm wondering about is whether it's better to md (multi-path + mirror) the iSCSI targets on the host, then create LVM partitions for the guests. Or to directly md the iSCSI targets within the guest. On one

Re: Better to use iSCSI on host or guest?

2011-06-13 Thread Avi Kivity
On 06/13/2011 07:05 PM, Emmanuel Noobadmin wrote: I'm planning to use iSCSI targets (over gigabit VLANs) for KVM guest disks. The question I'm wondering about is whether it's better to md (multi-path + mirror) the iSCSI targets on the host, then create LVM partitions for the guests. Or to

Re: Better to use iSCSI on host or guest?

2011-06-13 Thread Emmanuel Noobadmin
On 6/14/11, Avi Kivity a...@redhat.com wrote: My gut feeling is to do iscsi in the host. I guess it's best to measure though. Please post your findings if you do that. Any suggestions or recommendations as to how/what should I be measuring with? So far in trying to determine how bad is the