topic Re: FC10 disk drive replacement in Disk

FC10 disk drive replacement

Medavie — Fri, 26 Jul 2002 16:53:01 GMT

Hi ,
I currently need to replace an FC10 drive on my server running 10.20 and Fibre Card A3591A. Does anyone know the specific procedures ?

Thanks

Re: FC10 disk drive replacement

Bill McNAMARA_1 — Fri, 26 Jul 2002 19:21:26 GMT

In hardware terms, the disk is hot pluggable.
You can pull the disk from the array.

FC10 is not RAID'ed, so your data will have to be restored by conventional methods unless you're using LVM mirroring.

Adding the new disk in the slot is done with power on, run ioscan -fnC disk on the host to detect the inserted disk.

If you know the H.W path of the FCA, ioscan -fnH 0/0/2/0 for example.. this will limit the impact of the ioscan.

Then, when the disk is recognised, assuming h.w paths don't change you should see the disk CLAIMED in ioscan -fnkC disk with a device file. If you do not have a device file, insf -eC disk -I where the instance is the number in the I column (first numerical value following the disk in the ioscan result)
Now you should have claimed disk and device file.

Then to resore, as usual, vgcfgrestore any lvmconfiguration to the disk and restore your data via mirror synchronisation, or traditional backup.

Later,
Bill

Re: FC10 disk drive replacement

benoit Bruckert — Mon, 29 Jul 2002 07:23:33 GMT

Hi,
All above is OK,
but with Fiber channel, when you change the disk you have to declare to the driver that you will change the disk (the Fiber address isn't the same with the new disk).
You need to run the command :
fcmsutil /dev/ replace_dsk
where remote N_port_id> is the logical address of your disk
man
Do it before ioscan !

regards
Benoit

Re: FC10 disk drive replacement

Medavie — Mon, 29 Jul 2002 12:52:18 GMT

Thanks Bill.

Boy, talk about a simple process. We have replaced disks before with 11.00 and A5158A and used the fmcsutil with the replace_disk option. I new that that option wasn't available in the old 10.20 environment ( nor is tdlist ) so this was why I asked the question.

Thanks for your response.