The output of the zpool upgrade -v command identifies L2ARC cache devices as available. However, cache devices are not available in the Solaris 10 10/08 release. Various error messages are displayed:
If you attempt to add a cache device to a ZFS storage pool when it is created, you will see the following message:
# zpool create pool mirror c1t1d0 c1t2d0 cache c1t3d0 cannot create 'pool': operation not supported on this type of pool |
If you attempt to add a cache device to an existing pool, you will see the following message:
# zpool add pool cache c1t3d0 cannot add to 'pool': pool must be upgraded to add these vdevs |
Workaround: None.