I think this is a simple question but I can't figure it out and I have
been on the phone with HP Technical Support for over an hour with no
luck so I thought I post here.

I have two model 12H Autoraids. Each of the arrays has only 2 LUN's
configured. LUN 0 on each array is the recommended 10 megabyte
administrative LUN. LUN 1 on each array is a 36 gigabyte LUN used for
data storage and is assigned to a Volume Group named vgexe. When I
execute a "vgdisplay -v vgexe" command I see two disks assigned to the
Volume Group, along with the alternate path for each.

How do I determine which disk is assigned to each array? If I execute
an ioscan I can retrieve the hardware path and /dev/dsk number and if I
execute arraydsp -a the SCSI path is not displayed. Therefore I do not
know how to associate a hardware path with an array serial number. Any
help would be GREATLY appreciated.

On 28 Sep 2005 07:20:58 -0700, "Adman" <ad_man620@yahoo.com> wrote:

>How do I determine which disk is assigned to each array? If I execute
>an ioscan I can retrieve the hardware path and /dev/dsk number and if I
>execute arraydsp -a the SCSI path is not displayed. Therefore I do not
>know how to associate a hardware path with an array serial number. Any
>help would be GREATLY appreciated.


You can use the arraylog command. By displaying the event log by disk
path you can match it up to displaying it by S/N.


# arraydsp -i
Arrays known to the ARMServer:
Array with S/N: 000000057646 Alias: HELLO
# ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
================================================== ====================
disk 0 8/4.1.0 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c0t1d0 /dev/rdsk/c0t1d0
:
:

# arraylog -e /dev/rdsk/c0t1d0

Controller X Vendor ID = HP
Controller X Product ID = C5447A
Controller X Firmware = 6D07200118
Controller X Serial Number = R78AAD9440571111

Primary Controller = Y
Controller Y Vendor ID = HP
Controller Y Product ID = C5447A
Controller Y Firmware = 6D07200118
Controller Y Serial Number = R78AAD9439501111
No Events in Log

# arraydsp -i
Arrays known to the ARMServer:
Array with S/N: 000000057646

# arraylog -e 000000057646

Controller X Vendor ID = HP
Controller X Product ID = C5447A
Controller X Firmware = 6D07200118
Controller X Serial Number = R78AAD9440571111

Primary Controller = Y
Controller Y Vendor ID = HP
Controller Y Product ID = C5447A
Controller Y Firmware = 6D07200118
Controller Y Serial Number = R78AAD9439501111
No Events in Log

-----------------------------------

Cute trick to find physical array:

# arraydsp -i
Arrays known to the ARMServer:
Array with S/N: 000000057646
# arraymgr -D HELLO 000000057646
Set Alias Name to HELLO

Now go to the arrays. The 2nd line of the LCD display on Array
000000057676 will say HELLO.


Robert Klute
Cupertino Solution Center
Hewlett-Packard Company
-----
The opinions are those of the poster, not the company.

Robert,

THANK YOU!! I spent 2.5 hours speaking with all different levels of HP
Support with the conclusion the only way to know what you just
demonstrated was to have someone trace the cables from the back of the
server to each array.

Unfortunately the servers are in Michigan and I'm in Texas. I was
about to flip a coin to try and determine. You have saved me
potentially hours of work rebuilding the wrong array.

Thanks again!