topic Re: Tru64 5.1B Connectivity with XP512 in Disk Enclosures

Tru64 5.1B Connectivity with XP512

MUM_HPS — Tue, 06 Nov 2007 04:48:40 GMT

Hi
I have GS160 System connected to XP512 Storage. I Have approx 200 Luns all allocated to GS160 Server.
What i have identified that there are around 15 luns which gives IO Error while trying to label/initalise them.
disklabel -r dsk168c works fine.

My issue:
1. I want to understand the mapping of the dsk numbers with the CU:LU so that I can do further troubleshooting on the lun.
2. do we have any script like xpinfo which will help me in creating the mapping list.

can anyone help me on this

--Manmohan

Re: Tru64 5.1B Connectivity with XP512

Zygmunt Krawczyk — Thu, 08 Nov 2007 08:36:53 GMT

Hi,
read the doc
"HP StorageWorks LUN Configuration Manager XP
userâ s guide
XP48 XP256 XP512"
Regards,
Zygmunt

Re: Tru64 5.1B Connectivity with XP512

Zygmunt Krawczyk — Thu, 08 Nov 2007 08:37:29 GMT

Hi,
read the doc
"HP StorageWorks LUN Configuration Manager XP
userâ s guide
XP48 XP256 XP512"

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00264181/c00264181.pdf

Regards,
Zygmunt

Re: Tru64 5.1B Connectivity with XP512

MUM_HPS — Mon, 12 Nov 2007 04:49:08 GMT

Sorry to say, but my queries are not understood properly..

For point 1: From XP Point of view, i know the details and i dont require the Lun Manager Manual to be referred to.

What i want is how do i identifty from the OS in case if there is any issue on the LUN From OS Side.

I got the answer for the same, to check the wwn id of the dsk and the last 4 numbers will show me the CU:LU

Thanks for taking time to see my query

for Point 2: My query is still not answered

Manmohan

Re: Tru64 5.1B Connectivity with XP512

Ivan Ferreira — Mon, 12 Nov 2007 08:40:13 GMT

>>> What i have identified that there are around 15 luns which gives IO Error while trying to label/initalise them.
disklabel -r dsk168c works fine.

Check if the disks have scsi reservations, if so, clear them:

# scu -f /dev/rdisk/dsk10c
scu> show keys
Persistent Reservation Header:
Generation Value: 2
Additional Length: 16
Reservation Key List:
Key Entry 0: 0x10001
Key Entry 1: 0x10001

To remove the persistent reservations on a evice you can use scu to register a new key and then clear it which will remove all reservations:

scu> preserve register key 0 skey 1
scu> preserve clear key 1
scu> show keys
Persistent Reservation Header:
Generation Value: 4
Additional Length: 0
Reservation Key List: