I just upgraded a machine to OpenSolaris snv94.
When checking 'zpool status' (see below) , the system recommends to upgrade the
pools,
since some features are not available.
I'm very reluctant to upgrade those pools because once the OS would fail during
an upgrade,
my mirrored disks would be no longer accessible.
What kind of features would be no longer available?
depaepe at cerberos:~$ 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
c5t0d0s0 ONLINE 0 0 0
errors: No known data errors
pool: tank
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
tank ONLINE 0 0 0
mirror ONLINE 0 0 0
c6t0d0 ONLINE 0 0 0
c6t1d0 ONLINE 0 0 0
errors: No known data errors
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