Ld (Logical Disk) Setting Procedure; Spare Disk Setting Procedure - NEC NF2300-SR412E User Manual

7.3

LD (Logical Disk) Setting Procedure

When the disk drives are added to the disk array unit, the RAID level and LD (logical
disk) must be set appropriately.
Set the RAID level and LD (logical disk) by using the "NEC Storage Manager", or contact
the service engineer with expert knowledge in your service representative for setting of
the RAID level and LD.
7.4

Spare Disk Setting Procedure

Spare disk can be set only in RAID level 1, 5, or 10.
Set the spare disk by using the "NEC Storage Manager", or contact the service engineer
with expert knowledge in your service representative for setting of the spare disk.
If the disk array unit is connected with NF9520-SH01E, changing the LD
(logical disk) configuration may cause the OS to fail to recognize the logical
disks.
Be sure to restart the host system after changing the LD configuration.
For spare disk, make sure to assign the disk drive in slot 14. If slot 14 already
contains a disk drive for a spare disk, install the additional disk drive in slot
13.
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.
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