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Problem in identifying Disks with Lun ID

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Dhruva Raj
Advisor

Problem in identifying Disks with Lun ID

Hi All,

I have to identify few disks on the HP box Using LUN ID's and delete them.
These disks are presented from DS 8300 storage (IBM). In AIX i use lscfg -vpl hdisk10 to get the LUN-ID of a Disk but in HPUX i am finding it difficult to identify.
Can anyone help me with this please.

Thanks in Advance.

Regards,
Druva
9 REPLIES
Steven E. Protter
Exalted Contributor
Solution

Re: Problem in identifying Disks with Lun ID

Shalom Druva,

Start with ioscan to identify the LUNS.

You may need to use fcmsutil to identify world wide names as well.

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Dhruva Raj
Advisor

Re: Problem in identifying Disks with Lun ID

Shalom Steven,

Thanks for the response.

I am attaching the ioscan output and the Lun ID from DS8300. How can i match the lun-ID (storage) to IOscan output from HP box.
Can you please elaborate the use fcmsutil cmd to identify the lun-id. I tried this command but no luck :-(.


Regards,
Druva
Anshif
Occasional Contributor

Re: Problem in identifying Disks with Lun ID

Do you use powerpath?
if you are using power path jtry using the command inq -clariion

# inq -clariion -no_dots
this will give you the list of luns with the device path. The second column from the last will the LUN number in Hex.
Sample output

/dev/rdsk/c4t0d0 :DGC :CX3-80WDR5 :HP03 :Ch2 CONT : 144703488: 0: 59:ASSIGNED

59 is the LUN id in Hex

Hopes this helps..
Dhruva Raj
Advisor

Re: Problem in identifying Disks with Lun ID

Anshif,

I think your Storage is not DS 8K or I dont have power path installed. The inq -clariion didn't work.

I had missed attaching the file with IOscan o/p.

Regards,
Druva
S. Ney
Trusted Contributor

Re: Problem in identifying Disks with Lun ID

If you have 11.31 you can run the following command:

scsimgr -p get_attr all_lun -a device_file -a wwid -a

this will show the wwid for each disk as well as its state.
Dhruva Raj
Advisor

Re: Problem in identifying Disks with Lun ID

Unfortunately, my OS is HP11.11 .

Any other way to identify. I think there is some connection with cXtYdZ/hw_path with LUN-ID. But its too tricky.
Can anyone explain on the formula/calculation part to deduce cXtYdZ to Lun id. That will be of greate help.

Regards,
Druva
SoorajCleris
Honored Contributor

Re: Problem in identifying Disks with Lun ID

Hi,

http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1275671810127+28353475&threadId=1410613

see Tostern's post.

0/2/0/0.97.4.19.0.1.0 LUN 8

====================^

Take the last "0" and convert into 3 digit binary:

000

then take the "1" and convert too:

0001 000 ==> 0001000bin = 8 dec

This is decimal 8 = LUN 8.

Regards,
Sooraj
"UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity" - Dennis Ritchie
S. Ney
Trusted Contributor

Re: Problem in identifying Disks with Lun ID

Druva,

if you have inq on your hpux server this may or may not work for you but you could try ./inq -shark_wwn (since shark is ibm)

not sure what ibm's storage tool would be but most storage types have a tool to find wwid's of luns. (inq-EMC, xpinfo-HP, lunstat-hitachi)
Dhruva Raj
Advisor

Re: Problem in identifying Disks with Lun ID

Hi Ney,

I couldn't find 'inq'. I am going to raise case with IBM, since DS 8k is a IBM storage, hopefully IBM will have a answer.

Regards,
Druva