topic Re: HP SmartArray RAID Controller in Operating System - HP-UX

HP SmartArray RAID Controller

Massimo_20 — Tue, 10 Apr 2007 10:11:13 GMT

I have a rx 3600 with HP SmarArray Raid Controller and 8 disk. The ioscan output show only 7 disk!
How to check if a disk is logical disk?
And, how to check if a disk is a mirrored hardware disk?

Thanks in advanced.
Gianni

Re: HP SmartArray RAID Controller

Steven E. Protter — Tue, 10 Apr 2007 11:13:04 GMT

Shalom Gianni,

Appears a disk may be head or not conigured in the array.

check: /var/adm/syslog/syslog.log for lbolt errors.

Perhaps run mstm/cstm or xstm and see if you can find it.

Or boot the system into array configuration mode,an option at boot time and see whats configured into the array.

SEP

Re: HP SmartArray RAID Controller

Sameer_Nirmal — Tue, 10 Apr 2007 11:36:21 GMT

Assuming you have P400 Smart Array.

To see the SA configuration, the command is
# saconfig

Take a look at the SA P400 document at

http://docs.hp.com/en/J6369-90037/J6369-90037.pdf

Re: HP SmartArray RAID Controller

Hein van den Heuvel — Tue, 10 Apr 2007 11:56:38 GMT

>> Appears a disk may be head or not conigured in the array.

Beg to differ. Why would anyone configure a smartarray only to expose the drives as simple disk?! The thing has raid capability which should be used.

Once assumes it is configured as a pool of storage and a number of logical drives carved of. That number is apparently 7 untill proven otherwise.

What would bother me more is that the storage configuration is not a well know and documented fact. Surely it did not just 'happen', but was designed to certain specifications! Who was responsible for setting it up? Who drove the requirements?

Yes you should use tools to verify that the designed configuration is in place, but this basic a question would frighten me.

In my book either you have no business asking, or there is a dangerous lack of communication.

Respectfully,
Hein van den Heuvel

Re: HP SmartArray RAID Controller

Torsten. — Tue, 10 Apr 2007 13:08:04 GMT

Hi,

first read your "ioscan", e.g. you can probably see something like this:

disk 2 0/4/1/0.0.0.1.0 sdisk CLAIMED DEVICE
HP IR Volume
/dev/dsk/c1t1d0 /dev/rdsk/c1t1d0
/dev/dsk/c1t1d0s1 /dev/rdsk/c1t1d0s1
/dev/dsk/c1t1d0s2 /dev/rdsk/c1t1d0s2
/dev/dsk/c1t1d0s3 /dev/rdsk/c1t1d0s3

Please note the description "IR Volume" - this is the "Integrated RAID".

Then get the controller device from the ioscan (e.g. /dev/sasd0) and run:

# sasmgr get_info -D /dev/sasd0 -q raid=all

you will get the information about the RAIDs and the disks included in them.

See also

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1113853