NEC M310 Configuration Manual page 50

2. M310 Component Selection (19)
(6) Cache Memory
It is required to purchase cache memory for M310 disk array unit. Refer the following table when
purchasing it.
a) Cache Model at Purchase
Mode Number
NF5332-SC01SE
NF5332-SC02SE
b) Cache Capacity Expansion
Cache memory can provide better performance by improving access times to frequently accessed data
and can significantly improve on write performance. In order to reduce the occurrence of cache
overflow conditions in high performance environments, it is recommended to expand cache to
maximum 48GB.
(i) Cache Saturation
Cache
Usage
・・・
c) Cache Capacity Selection
The following table describes recommended cache capacity.
Logical disk capacity (GB)
Up to 26TB
More than 26TB
Product Name
Standard Cache Memory (12GB)
Standard Cache Memory (24GB)
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Cache
(
Saturated by Usage
・・・
Recommended cache capacity
Standard Cache Memory (12GB) for M310
Standard Cache Memory (24GB) for M310
...
) Not
Saturated
24GB
48GB
NEC Confidential
Remarks
(ii) Cache Expansion
Cache
Usage
・・・
Number of Cache Memory
Standard Cache Memory (12GB) x 2
Standard Cache Memory (24GB) x 2
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