rx3600 is not detecting hard disk

[sandeepkrishna]

Hi all,

I installed Hp UX 11.23 on rx3600 . After that I added another hard disk to slot 2 but the OS not detecting that HDD. Even changed slot and HDD no luck!!

Can anybody suggest a solution???

Here is ioscan output

ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
====================================================================================
disk 0 0/0/2/1.0.16.0.0 sdisk CLAIMED DEVICE TEAC DV-28E-V
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/4/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP IR Volume
/dev/dsk/c1t0d0 /dev/dsk/c1t0d0s2 /dev/rdsk/c1t0d0 /dev/rdsk/c1t0d0s2
/dev/dsk/c1t0d0s1 /dev/dsk/c1t0d0s3 /dev/rdsk/c1t0d0s1 /dev/rdsk/c1t0

[Kenan Erdey]

Hi,

did you ioscan without u option:

ioscan -fnC disk ?

[sandeepkrishna]

Yes ... Result is same.

[Jeeshan]

install the driver first

#insf

and then apply command

#ioscan -fnC disk

[sandeepkrishna]

Thanks for the reply.. but no luck with insf...!!

[Jeeshan]

reinstall again

#insf -e

[Torsten.]

Where is the problem?

What you see is a internal hardware RAID 1 managed by the LSI SAS chip.

"HP IR Volume" indicates this.

Run this command (adjust sasd0 if needed) to get more information:

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

you will see physical and logical drives.

Consider to post the output.

[Torsten.]

Just to clarify:

Your system is configured to have a *hardware* mirror.

If you pull out one of these disks, you have a still working, but degraded mirror.

If you now insert a (new) disk to this slot, the controller detects a drive replacement and is going to rebuild the mirror.

I guess you see activity on both disks, right?

If you now pull this disk again and insert it to another slot, IMHO the controller "remembers" this disk (by the SAS-ID) and is starting the rebuild again.

Since it is part of this hardware RAID, you won't see it in ioscan.

Use the command above to get the details.

Don't worry, everything is totally normal.

[sandeepkrishna]

Thanks for the help. It could solve the issue.. Thanks once again.. Also i need to know one things that Is there any way to remove the secondary disk from raid without loosing my data..? I don't want to use hardware mirror any more..???

[Torsten.]

I guess you will loose the data if you deconfigure the RAID.

Hardware RAIDs are really nice to use - why you don't want it?

IMHO a disk replacement on a SAS controller without RAID is much too difficult ...