topic Re: Fibre Channel Disk not seen in Operating System - Linux

Fibre Channel Disk not seen

Robert Bryan — Tue, 22 Aug 2006 14:22:04 GMT

Fibre Channel Disk failed on a RP 7400...

Replaced disk (no problem, disk spun up and shows solid green light)

Ioscan shows disk as NO_HW (normal)

There are no messages in Syslog to find the loop ID

Tried running fcmsutil /dev/td0 replace_dsk 0xda (this is the disk that was complaining before it died)

Error: no device found...

What could be the problem????

Thanks in advance

Re: Fibre Channel Disk not seen

Steven E. Protter — Tue, 22 Aug 2006 14:55:38 GMT

Shalom,

We have a prayer for the dead here in our liturgey. I'm silently reciting it for your disk drive.

The disk died. Say a prayer for it, if thats your thing, contact support and have the drive replaced.

If its the only drive on the fiber card, the fiber card or san connection may have died. This I doubt because it shows up as NO_HW on ioscan.

dmesg
# You should see an lbolt.
dmesg -
# to clear the dmesg buffer

SEP

Re: Fibre Channel Disk not seen

Robert Bryan — Tue, 22 Aug 2006 15:15:25 GMT

The drive was replaced...but is not being seen...

Tried running fcmsutil /dev/td0 replace_dsk 0xda... but recieve error no device at this location...

syslog is not show a WWN conflict, which would be expected, being that a new fibre channel drive is now at that location...

???

Re: Fibre Channel Disk not seen

Andrew Cowan — Wed, 23 Aug 2006 02:58:54 GMT

What does "fdisk -l" show, and are you using any extra software such as Powerpath?

Your disk can dispear like this if the SAN guys have done a switch reconfiguration or switched-on LUN masking that wasn't there previously.

Re: Fibre Channel Disk not seen

Robert Bryan — Wed, 23 Aug 2006 11:59:22 GMT

This is a UNIX based Server
HP 9000 RP7400...
fdisk command is a window based command

Re: Fibre Channel Disk not seen

Andrew Cowan — Wed, 23 Aug 2006 14:23:02 GMT

Sorry Robert I was talking Linux rather than Windows. What does ioscan -fnC disk say then?

Re: Fibre Channel Disk not seen

Anthony Martin_1 — Wed, 23 Aug 2006 19:58:24 GMT

Hi Robert,
I suggest you check dmesg and recheck the nport ID. Make sure the nport ID equals your 0xda.
Also check for FLOGI/PLOGI errors in dmesg in case it is a different port number.
Don't forget to run the fmsutil command on all the fibre loops.

Cheers
Anthony

Re: Fibre Channel Disk not seen

Robert Bryan — Fri, 25 Aug 2006 10:35:24 GMT

Problem was resolved...
The first drive we recieved was DOA...
The next drive worked OK