Do I need a LUN 0 defined

[David Bell_1]

Keith,

To avoid confusion on my post, I'm specifically referring to the VA7x00. The information in my previous post for that device is correct. As to the Hitachi, I've not worked with that device and cannot speak to it's configuration.

Good Luck,

Dave

[Keith C. Patterson]

Well everyone,
Here's output from an ioscan when I attach to a Hitachi 9200 array:
See attachment.
If you notice, I don't have a LUN 0 on target 0 but am able to see subsequent LUNS. I do, however, have a LUN 0 on target 1. It appears that you do need a LUN 0, but not necessarily on the same target.

[William Shaw]

Regarding your last message about LUN 0 appearing on target 1 (but no LUN 0 on target 0), at the HDS array you will see that that device is actually LUN 8, but the HP OS maps any LUN greater than 8 to the next target, wrapping around to LUN 0 again. A LUN 16, for instance, would therefore map to target 2, LUN 0. So you don't *really* have any LUN 0 out there, it's just how HP maps LUNs higher than 0 through 7.

Regards, Bill