How to clear detached device information using fcmsutil?
Guys,
Recently I detached a tape library connected on the switch, and I get syslog from the box:
Apr 7 16:45:01 ompj vmunix: 0/2/1/0: 'World-wide name' (unique identifier) for device at nport ID 0x10f00 has Apr 7 16:45:01 ompj vmunix: changed. If the device has been replaced intentionally, please use the Apr 7 16:45:01 ompj vmunix: fcmsutil(1M) command's replace_dsk option to allow the new device to be used. Apr 7 16:45:01 ompj vmunix: 0/2/1/0: Fibre Channel Driver detected a parse error in the FLOGI/PLOGI response Apr 7 16:45:01 ompj vmunix: returned by nport ID 0x10f00. FLOGI/PLOGI Fail Code = 0x6.
and event.log told:
Summary: Adapter at hardware path 0/2/1/0 : Unable to open previously opened target
Description of Error:
lbolt value: 789267253
Unable to access previously accessed target nport ID = 0x11300
It seemed that I need to clear the library configuration from fibre environment, and I know that fcmsutil has such function, but I don't know how. Could some one please explain fcmsutil to me?
Re: How to clear detached device information using fcmsutil?
The /opt/fcms/bin/tdlist command will show you a list of FC devices - you'll see something like /dev/td0, /dev/td1 corresponding to each of your FC adapters. You'd be looking for the path there that corresponds to the 0/2/1/0 hardware path.
The replace_dsk command would go something like this:
fcmsutil /dev/td0 replace_dsk 0x10f00
What's sort of odd here, though, is that you're saying that the device is detached, but the driver seems to be detecting a device with a WWN at that nport ID, indicating that a new device has been put in.
If you really did detach the device and not replace it with anything else, then you may be looking for "rmsf" - remove special files. It's the opposite of "insf." I'm not sure how that interacts with fcms, but it may be worth a try.
In your "ioscan -fn" output you should see an entry (or two, or few) showing NO_HW where the tape library used to be, at 0/2/1/0. So the rmsf command would be:
rmsf -H 0/2/1/0
Make sure you double-check this with "ioscan -fn" ahead of time, though. Don't rmsf a CLAIMED device. This will remove /dev files for that hardware path, which may be enough to get FCMS to stop looking for it - it should not show up as NO_HW in ioscan anymore, nor in "tdlist", I expect.
