topic Re: Replacing Disk on Autoraid H12 in Disk Enclosures

Replacing Disk on Autoraid H12

matthew bettinger — Tue, 28 Oct 2003 09:23:56 GMT

# bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 204800 31506 162473 16% /
/dev/vg00/lvol1 299157 39536 229705 15% /stand
/dev/vg00/lvol8 2609152 619025 1869728 25% /var
/dev/vg00/lvol7 1007616 544421 434361 56% /usr
/dev/vg00/ud52 11960320 625556 10980612 5% /usr/ud52
/dev/vg00/lvol4 204800 6256 186714 3% /tmp
/dev/vg01/lvol1 36843520 4983384 31613160 14% /roi
/dev/vg00/lvol6 376832 261857 108067 71% /opt
/dev/vg00/lvol5 20480 2628 16979 13% /home
----------------------------------

Disk A3 on the array went out the other day and our hardware suport vendor gave me a new 18.2g disk for replacement. He said All I had to do was replace the old drive with this drive and the box would rebuild the array.

I did as instructed and the disk didn't perform any rebuild, it's sitting there with no green light.

root user got this in the email:
=======================================
Tue Oct 28 05:46:50 2003
Array Monitor Daemon
=======================================
Disk error in disk array on /dev/rdsk/c4t0d0
at m2khpux.
Disk in slot 'A3' was
previously used in another array.

Standard input: END

=======================================
Tue Oct 28 05:46:51 2003
Array Monitor Daemon
=======================================
Disk error in disk array on /dev/rdsk/c4t1d0
at m2khpux.
Disk in slot 'A3' was
previously used in another array.

Is there something on the H12 array that needs to be set to 'autobuild' ? I'm a little apprehensive since this is a production box housing our Unidata DB and the last thing I need is to have to take it down.

Thank you for any help.

-mb

Re: Replacing Disk on Autoraid H12

Eugeny Brychkov — Tue, 28 Oct 2003 09:44:05 GMT

Go to 12h and include this disk A3 using 12h's front panel.
More info see in guides http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&locale=en_US&docIndexId=179911&taskId=115&prodTypeId=12169&prodSeriesId=33733
Eugeny

Re: Replacing Disk on Autoraid H12

matthew bettinger — Tue, 28 Oct 2003 09:53:32 GMT

Thanksfor the info. Quick question, is this something I can do during the day or is it going to drag that L2000 to it's knees ?

Re: Replacing Disk on Autoraid H12

Denver Osborn — Tue, 28 Oct 2003 09:56:14 GMT

Here is how to manually add it to the array.

arraydsp -i <--- to get the array-id
arraycfg -D A3 -a

That will tell the Array it's ok to use the new disks. The utils are located in /opt/hparray/bin. See the man pages for more info.

-Denver

Re: Replacing Disk on Autoraid H12

Eugeny Brychkov — Tue, 28 Oct 2003 09:59:57 GMT

You can do it now. I do not think there will be performance impact when array will start balancing. I guess balancing has lower priority than user I/O
Eugeny

Re: Replacing Disk on Autoraid H12

matthew bettinger — Tue, 28 Oct 2003 10:04:53 GMT

Thanks for the help fellas. Here goes nothing....

Re: Replacing Disk on Autoraid H12

matthew bettinger — Tue, 28 Oct 2003 13:32:04 GMT

Hello again.

The A3 disk has been reclaimed by the array now. Thanks. How can I check the progress of the rebuild?

I've attached arraydsp -a output.

re,

mb

Re: Replacing Disk on Autoraid H12

Joshua Scott — Tue, 28 Oct 2003 15:39:05 GMT

I beleive if the front of the array says "Ready" then it should be complete. Check the LCD on the 12H

Re: Replacing Disk on Autoraid H12

matthew bettinger — Tue, 28 Oct 2003 16:44:14 GMT

The Array panel says 'READY' however, there is hardly any disk activity in the new drive (A3)
It blinks green every so often but nothing like the other disks. There is definately something different about the A3 disk.

Re: Replacing Disk on Autoraid H12

matthew bettinger — Tue, 28 Oct 2003 16:48:41 GMT

Here is the latest entry from syslog.log :

Oct 28 09:45:12 m2khpux xntpd[951]: synchronized to 201.201.2.254, stratum=3
Oct 28 10:09:51 m2khpux syslog: HP Advanced Disk Array serial number 000000136DE4: Array online: Product Revision: HP62: Product ID: C5447A
Oct 28 10:09:51 m2khpux syslog: HP Advanced Disk Array serial number 000000136DE4: Disk fully functional: Disk A3: SLS800002101: Vendor: SEAGATE : Product ID: ST318404LC
Oct 28 10:14:17 m2khpux sshd[11820]: Accepted password for root from 201.201.2.155 port 1089 ssh2

Are there other places I should be checking for logs ?

Re: Replacing Disk on Autoraid H12

Joshua Scott — Tue, 28 Oct 2003 17:02:01 GMT

One thing I just noticed, Disk A3 is firmware HP04, whereas the rest of the disks are HP01. Not sure if that makes any difference, but wanted to point it out in case someone knew anything about issues with firmware differences.

The rebuild priority is set to 'HIGH', and autorebuild is ON, but if the disk has been previously used, i beleive you have to start a manual rebuild from the front panel of the 12H. First change the rebuild priority to low, so that you don't take a major performance hit.

Re: Replacing Disk on Autoraid H12

Denver Osborn — Fri, 31 Oct 2003 12:11:02 GMT

can you attach the output from this arraydsp command?

arraydsp -a 000000136DE4

-Denver

Re: Replacing Disk on Autoraid H12

Denver Osborn — Fri, 31 Oct 2003 12:12:28 GMT

ignore my last post... I see you already included it. :)

Re: Replacing Disk on Autoraid H12

matthew bettinger — Fri, 31 Oct 2003 12:44:06 GMT

Ok thanks for all of the help. The disk finally started acting normally after I copied a large amount of data around. The replacemenmt disk must have not had a whole lot of data accross it to begine with ? It's chunking along now.