Repair Time; Dummy Logical Disk; Dynamic Capacity Expansion - NEC NF2300-SR412E User Manual

8.

Repair Time

The repair time is set to 10 hours in default. The repair time can be set in the range from 0
(fastest) to 24 hours. Depending on the disk capacity, the repair may not be terminated
within the defined time. Without commands from the higher system, the repair operates in
the fastest mode.
See "Several Settings on PD (Set of Repair Time)" in "Guide to Setting of NEC Storage
Manager Configuration" for the use of the management software (NEC Storage Manager).
9.

Dummy Logical Disk

If there are no logical disks, the OS is unable to recognize a disk array unit. To avoid
this problem, logical disk 0 of RAID0 (with a single disk drive) is automatically created
when no logical disks exist.
Do not use the created logical disk as it is. After the OS recognizes the logical disk, be
sure to unbind it by using the management software (NEC Storage Manager), and then
bind it.
For how to use the management software (NEC Storage Manager), see "Several settings
on PD (RANK unbind and LD unbind)" in "Guide to Setting of NEC Storage Manager
Configuration".
10.

Dynamic Capacity Expansion

The addition of a single disk drive to the rank configured with RAID 5 allows the logical
disk capacity to be expanded in the rank. The configurations subject to the expansion
range from 2+P and 13+P.
Disk drives should be added one by one. Only after an expansion is completed, the next
expansion operation can be started.
The expansion operation may be started by the management software (NEC Storage
Manager).
For the setting, contact your service engineer of the maintenance service agent with the
expert knowledge.
120