From: CNF (BldrxJ@netscape.net)
Date: Thu Jan 09 2003 - 16:39:27 EST
Many thanks to Dr. Thomas Blinn, who reinforced my suspicion that the WWIDs of these drives might be the same. This is supposed to be 'impossible', however it is in fact the case.
The command I used was:
hwmgr get attr -a dev_base_name -a serial_number -a manufaturer -a model -a phys_location
And just switched around 36 Gb drives between reboots. All my other 9 and 18Gb drives have differet WWIDs, and the 36's all have the same one.
HP techs verified this as well.
Now I just need new drives...
Thank you also to:
Mike Deacy, who wrote:
<MD>
I don't know the particulars but I thought that those shelves only took
drives that were 9GB or smaller, at least from an officially supported
level. If you're using the 18s with no problem, great but you may want to
confirm that those shelves and the 36GB devices play nicely together. </MD>
Actually, I have BA356-SF shelves, which do support these drives.
And to Pat O'Brien who wrote:
<PO>
have you tried several other 9 or 18 gb drives in the same shelve. I know I
have a bad shelf where I am allowed 4 of the 7 slots and when I put a 5th,
none can be seen. Also there is terminators and jumpers on the shelves, and
occasionaly I find a hba with a non statndard target id.
</PO>
I had switched the drives around many different ways, and the problem always followed the first 36Gb drive, but all others (in any position) were ok.
Thanks everyone!
nikolai federov
BldrxJ@netscape.net (CNF) wrote:
>Tru64 managers:
>
>I have an issue with adding 36Gb disks to a cluster, which has me totally baffled.
>
>I have a 5.1a cluster of two DS20e's, with two BA356 shelves and KZPBA controllers. I'm using 9 and 18Gb drives, DS-RZ1DD-VW's and DS-RZ1ED-VW's,
>with no problem. I'm trying to add 5 36Gb drives, and I have DS-RZ1FB-VW's, and DS-RZ1FC-VW's.
>
>What happens is that I add the 5 drives to the shelves (I've tried them in many positions, and the same thing occurs), and I can see them from firmware just fine. I can also see them from the SCSI CAM utility with no problem.
>
>However, hwmgr -view devices only shows ONE 36Gb drive, the first one on the bus. If I only add one 36Gb drive, this works fine. If I add two or more, they're unusable. The o/s (ie. diskconfig) can only see one 36Gb drive, even if there are many on the shelf.
>
>I've double checked all the SCSI connections, and these are ok. I've swapped SCSI controllers, and the problem continues. I've tried booting from the 5.1b install CD, and the problem shows there as well.
>
>SCSI seems fine, because scu and the firmware see the drives fine, but the o/s can only see one, and if there is more than one, nothing can be done with it.
>
>I suspect that when multiple 36Gb drives are added, many paths are added with ONE WWID, based on what I see in scu and hwmgr -scan scsi...but I'm not sure. Even if that is the case, it's very bizarre.
>
>If anyone can shed any light on this, I'd really appreciate it.
>
>Thanks!
>
>nikolai federov
>
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