Originally posted by: SystemAdmin

I'm a little concerned about io for our VIO server volumes for local disk. We are putting a fair number of client rootvgs onto the same disks... I'd like to try striping the data across multiple disks within the VIO server for better performance. But "help mklv" does not list any options for creating striped volumes. I suspect that going into "oem_setup_env" and creating volume groups in there would be a bad idea.
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Originally posted by: VirtualGreg

This topic is probably better suited to the virtualization forum, however, you should read http://publib.boulder.ibm.com/infocenter/eserver/v1r3s/topic/iphb1/iphb1.pdf at the top of page 5 in particular. You cannot used striped LV's as virtual disks, among a couple of other LVM restrictions.

I suggest you used hardware RAID. Most p5 servers can use RAID enablement features for internal disk, there's external SCSI and fibre channel storage options as well.
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Originally posted by: SystemAdmin

By the way, using "oem_setup_env" and creating volume groups manually did seem to work for me. You create the volume group normally as you would under AIX, and then use the "mkvdev" command as padmin.

I've been told this is not supported however, so I don't plan on using this technique. But for the adventurous, you might want to give it a try.
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Originally posted by: BruceSpencer

See my post in the AIX Blog. You should not use AIX to configure client resources on the VIO server. It can get you into trouble.

In this case, the issue with striping client LV's is unpredictable behavior if a disk fails.
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