After physically replacing the disk, the new disk might not be assigned to the
controller on which the old disk was assigned, depending on the value of the
disk.auto_assign option, which you can check with:
options disk.auto_assign
Even if the value of that option is on, the disk might still remain
unassigned, in which case you will see a message for unassigned disks in the
end of the output of the command:
disk show
You can see which disks are unassinged with
disk show -n
To assign a disk to a controller, SSH to that controller and do:
disk assign XX.YY.ZZ
... where XX.YY.ZZ is the name of the disk, as obtained by disk show -n.
Example output:
FAS> disk assign 01.23.45
Fri May 13 00:00:02 [FAS:diskown.changingOwner:info]: changing ownership for disk 12.34.45 (S/N ABCDEF) from unowned (ID 1234567890) to FAS (ID 0987654321)