AIUI, this works as designed. I think the best practice will be to add the L2ARC to syspool (nee rpool). However, for current NexentaStor releases, you cannot add cache devices to syspool.
Earlier I mentioned that this made me nervous. I no longer hold any reservation against it. It should work just fine as-is. -- richard On Jan 23, 2010, at 9:53 AM, Lutz Schumann wrote: > Hi, > > i found some time and was able to test again. > > - verify with unique uid of the device > - verify with autoreplace = off > > Indeed autoreplace was set to yes for the pools. So I disabled the > autoreplace. > > VOL PROPERTY VALUE SOURCE > nxvol2 autoreplace off default > > Erased the labels on the cache disk and added it again to the pool. Now both > cache disks have different guid's: > > # cache device in node1 > r...@nex1:/volumes# zdb -l -e /dev/rdsk/c0t2d0s0 > -------------------------------------------- > LABEL 0 > -------------------------------------------- > version=14 > state=4 > guid=15970804704220025940 > > # cache device in node2 > r...@nex2:/volumes# zdb -l -e /dev/rdsk/c0t2d0s0 > -------------------------------------------- > LABEL 0 > -------------------------------------------- > version=14 > state=4 > guid=2866316542752696853 > > GUID's are different. > > However after switching the pool nxvol2 to node1 (where nxvol1 was active), > the disks picked up as cache dev's: > > # nxvol2 switched to this node ... > volume: nxvol2 > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > nxvol2 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t10d0 ONLINE 0 0 0 > c4t13d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t9d0 ONLINE 0 0 0 > c4t12d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t8d0 ONLINE 0 0 0 > c4t11d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t18d0 ONLINE 0 0 0 > c4t22d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t17d0 ONLINE 0 0 0 > c4t21d0 ONLINE 0 0 0 > cache > c0t2d0 FAULTED 0 0 0 corrupted data > > # nxvol1 was active here before ... > n...@nex1:/$ show volume nxvol1 status > volume: nxvol1 > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > nxvol1 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t15d0 ONLINE 0 0 0 > c4t18d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t14d0 ONLINE 0 0 0 > c4t17d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t13d0 ONLINE 0 0 0 > c4t16d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t12d0 ONLINE 0 0 0 > c4t15d0 ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c3t11d0 ONLINE 0 0 0 > c4t14d0 ONLINE 0 0 0 > cache > c0t2d0 ONLINE 0 0 0 > > So this is true with and without autoreplace, and with differnt guid's of the > devices. > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
