NEC Storage Manager Configuration Setting Tool User's Manual page 29

bound.
When you do not bind the Hot Spare, type "0".
* Hot Spares are assigned to the PD having the greatest number in descending order from the DE having the
greatest number. Up to two Hot Spares can be assigned to each DE. (When there are two DEs and 15 PDs
for each DE, specify them in the order of DE#1/PD#1e
* If some PDs have a different capacity, a Hot Spare is assigned only to a PD having a larger capacity.
(4) RANK Bind
Select a RANK format.
1. High Reliability
2. Standard
3. Large Capacity 1
4. Large Capacity2
autobind> RAID Type (1 - 4) =
Input the number of format to be created.
High Reliability
The data reliability is high, but the allowable capacity is low.
Standard
The data reliability and allowable capacity are medium.
Large Capacity1,2
The allowable capacity is high, but the data reliability is relatively low. (PD capacity x 6 or 8 units)
* When binding a RANK with PDs having different capacities, the RANK capacity is obtained by (PD having the
lowest capacity x Number of PDs above).
(5) Confirming Hot Spare and RANK Bind
The respective numbers of configurable RANKs, Hot Spares, and unused PDs are displayed depending on the
specified contents.
RAID Type : High Reliability
Number of RANK
Number of Spare
Unused PD
autobind> Is this OK? (y | n) =
If there is no change on the setting, select "y". When changing values, select "n". When "n" is selected, the
screen returns to step (3) "Set the Number of Hot Spares".
: RAID1(1+1)
: RAID5(4+P)
: RAID5(6+P)
: RAID5(8+P)
: 1
: 0
: 0
II-5
Chapter 4 Setting Commands
DE#0/PD0e DE#1/PD#1d
(Reliability: High, Capacity: Low)
(PD capacity x 1 unit)
(Reliability: Medium, Capacity: Medium)
(PD capacity x 4 units)
(Reliability: Low, Capacity: High)
DE#0/PD#0d.)