zfs discuss - Aug 2009 - zpool status showing wrong device name (similar to: ZFS confused about disk controller )

Hi All,

over the last couple of weeks, I had to boot from my rpool from various physical
machines because some component on my laptop mainboard blew up (you know that 
burned electronics smell?). I can''t retrospectively document all I did,
but I am
sure I recreated the boot-archive, ran devfsadm -C and deleted 
/etc/zfs/zpool.cache several times.

Now zpool status is referring to a device which does not even exist, though 
everything else is working fine:

root at haggis:/mnt# zpool status
   pool: rpool
  state: ONLINE
status: The pool is formatted using an older on-disk format.  The pool can
	still be used, but some features are unavailable.
action: Upgrade the pool using ''zpool upgrade''.  Once this is
done, the
	pool will no longer be accessible on older software versions.
  scrub: none requested
config:

	NAME        STATE     READ WRITE CKSUM
	rpool       ONLINE       0     0     0
	  c4t0d0s0  ONLINE       0     0     0

errors: No known data errors
root at haggis:/mnt# echo | format
Searching for disks...done


AVAILABLE DISK SELECTIONS:
        0. c1t0d0 <DEFAULT cyl 28468 alt 2 hd 255 sec 63>
           /pci at 0,0/pci103c,30c5 at 1f,2/disk at 0,0
Specify disk (enter its number): Specify disk (enter its number):
root at haggis:/mnt# ls -als /dev/dsk/c4t0*
/dev/dsk/c4t0*: No such file or directory


I have tried

- deleting the zpool.cache
- deleting the cache files in /etc/devices
- recreating the boot archive

but none of that has made a difference.

I have found a thread documenting a similar issue, but it did not contain a real
solution:

http://www.opensolaris.org/jive/thread.jspa?threadID=77876

Does anyone have a clue how I can correct ZFS''es idea of my disks name?

Thank you,

Nils

Hi,
> Now zpool status is referring to a device which does not even exist, 
> though everything else is working fine:
Sine my initial posting, I had move my data to a larger disk, so I mirrored the 
rpool and removed the original disk. To make the system boot again, I also 
booted from cd, removed the zpool.cache and completely recreated the 
boot_archives (actually removed the files and ran bootadm -R <root>
update-archive).

I cannot tell exactly what action has resolved the issue, but at any rate the 
view of ZFS is now consistent with reality again:

root at haggis:~# echo|format
Searching for disks...done


AVAILABLE DISK SELECTIONS:
        0. c1t0d0 <DEFAULT cyl 55448 alt 2 hd 255 sec 63>
           /pci at 0,0/pci103c,30c5 at 1f,2/disk at 0,0
Specify disk (enter its number): Specify disk (enter its number):
root at haggis:~# zpool status
   pool: rpool
  state: ONLINE
status: The pool is formatted using an older on-disk format.  The pool can
	still be used, but some features are unavailable.
action: Upgrade the pool using ''zpool upgrade''.  Once this is
done, the
	pool will no longer be accessible on older software versions.
  scrub: none requested
config:

	NAME        STATE     READ WRITE CKSUM
	rpool       ONLINE       0     0     0
	  c1t0d0s0  ONLINE       0     0     0

errors: No known data errors

Nils