topic Re: HW path for root disk ? in Operating System - HP-UX

HW path for root disk ?

mobidyc — Wed, 18 Feb 2009 17:02:17 GMT

Hi,

I'm writing a shell script for autoinstall HP-UX through Ignite configuration files.

Could you help me to discover the HW path of the root disk by model ?

I've found the following informations in my environments:
MODEL / HWPath
BL860c 0/2/1/0.0.0.0.0
J6000 10/0/15/1.6.0
rx1620 0/1/1/0.0.0
rx2620 0/1/1/0.0.0
rx4640 0/1/1/0.0.0

Thanks for your help

--
Regards,
Cedrick GAILLARD

Re: HW path for root disk ?

Steven E. Protter — Wed, 18 Feb 2009 17:03:43 GMT

Shalom,

lvlnboot -v

Notice the rx servers root disk is the same by default on all three of those.

SEP

Re: HW path for root disk ?

Torsten. — Wed, 18 Feb 2009 17:09:13 GMT

It is sometimes hard to find this information if the servers are not up and running.

Anyway, the path is fixed for most servers.

Example:

BL860c

0/2/1/0.0.0.0.0 (left slot)
0/2/1/0.0.0.1.0 (right slot)

But it could be different, if you are using hardware based RAIDs and/or optinal smartarray controllers!

Re: HW path for root disk ?

Avinash20 — Wed, 18 Feb 2009 17:10:24 GMT

You could also refer to below url to understand the H/W path

http://docs.hp.com/en/B2355-90675/ch01s05.html

Re: HW path for root disk ?

Torsten. — Wed, 18 Feb 2009 17:20:18 GMT

There are some special features for many servers, another of these features

rx4640

0/1/1/0.1.0 (top slot)

0/1/1/0.0.0 (bottom slot in simplex config.)

0/1/1/1.0.0 (bottom slot in duplex config.)

Re: HW path for root disk ?

mobidyc — Wed, 18 Feb 2009 17:32:10 GMT

Hi,

steven => i know how to find the root disk of my servers, it's not the question.

Avinash V Rao => Understanding the HWpath will not help me.

Torsten => i only search the HW path for a base system, no additional controller.

do you have any system not in my list ?
could you indicate the root disk please ?

the idea is to have a listing for use in the shell script i'm writing.

Thanks,
Regards

Re: HW path for root disk ?

James R. Ferguson — Wed, 18 Feb 2009 17:44:32 GMT

Hi Cedrick:

For what its worth:

rx2660 0/1/1/0.0.0.1.0

Regards!

...JRF...

Re: HW path for root disk ?

Torsten. — Wed, 18 Feb 2009 18:12:09 GMT

Be careful, many servers have 2 or more internal disks - all can be used for the OS **OR** data!
There is no default disk for the OS, you can also install the OS on external disks and use the internal for data.

Keep this in mind while scripting.

Anyway, for each server you can find this information in the (install or user) guide.

This documents lists the pathes (page 54 ++) for many rx and rp servers from 8xxx and 7xxx family:

http://docs.hp.com/en/5991-6027/5991-6027.pdf

Do you need the pathes for some specific servers?

Re: HW path for root disk ?

sujit kumar singh — Wed, 18 Feb 2009 21:08:07 GMT

hi

On the rx systems please try
#dmesg | grep -i boot

this shall show the disk from which the currect disk has boted.

Alteranatively also can try if the system has the boot disks set properly as

#setboot | grep -i primary
#setboot | grep -i alternate

regards
sujit

Re: HW path for root disk ?

mobidyc — Thu, 19 Feb 2009 08:36:50 GMT

Torsten:

I want to install all servers on the first system disk by default but it will be possible, of course, to confirm/modify this choice.

i've no specific server in mind but I try to have an exhaustive list.

I will search through docs.hp.com, thanks for the pdf.

Regards,
Cedrick Gaillard