ZFS: Device names in a raidz1 pool after changing controllers

[Chris Ross]

 I’m moving one of my systems from the on-board SATA controller to a SATA/SAS controller.  A side effect of the first experiement, of moving half of the SATA drives onto the new controller, is that they went from being named “ada2” and “ada3” to being “da0” and “da1”.

 ZFS, happily, just coped with this.  But, the raidz1 pool that was spread across parts of disks on both sides, now looks like:

	NAME                            STATE     READ WRITE CKSUM
	tank                            ONLINE       0     0     0
	  raidz1-0                      ONLINE       0     0     0
	    ada1p4                      ONLINE       0     0     0
	    diskid/DISK-WOL240261932p1  ONLINE       0     0     0
	    diskid/DISK-WOL240261922p1  ONLINE       0     0     0

 (where before, the second and third components were ada2p1 and ada3p1).

 1) Is it possible to rename how zpool lists these disk identifiers?
 2) If so, is there consensus on whether device names or diskid are “better”, perhaps simply “more recommended"?  In a way, I’d like an idea how to tell which disk in the enclosure is which device in the pool, which I think diskid would make harder…

 Thanks.

             - Chris

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