NEC NF2300-SE41E, Руководство пользователя

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When you change a failing disk to a spare disk, confirm the following to get
the spare disk to function normally:
The capacity of the spare disk is equal to or greater than that of the failing
disk.
The rotational speed of the spare disk is equal to or faster than that of the
failing disk.
Therefore, if a large-capacity disk is defined as a spare disk, it can cover all
the disks of a high-speed drive. However, if your disk array unit contains disks
of different capacities or different rotational speeds, you should define a spare
disk matching the capacity and rotational speed of each disk in order to clarify
disk management.
Up to 2 spare disks can be installed for each disk enclosure. Up to 16 spare
disks can be installed for the entire disk array unit.
<Installation procedure>
Disk drives may be installed in the additional disk enclosure with the powers of the
additional disk enclosure, disk array unit, and host unit being ON.
For the replacement of one or more dummy trays and disk drives, replace them one by
one. Do not remove two or more dummy trays at a time.
(1) Putting of location label
Before installing the disk drive, select the location label appropriate to the location
where the disk enclosure is to be installed, and put it on the additional disk drive.
Location label