NEC Express5800 series User Manual page 44

40 Operation
[Don't use Existing Arrays]:
Do not use existing arrays.
[Use Existing and New Arrays]:
Use both existing and new arrays.
3. Specify the number of logical drives to be created for each RAID and its capacity in Virtual
Disk Count and Total Capacity, respectively. Set relevant parameters in Virtual Disk
Properties and click [Next].
[Stripe Size]:
Select the unit of data distributed to each hard disk drive configuring RAID out of 8K,
16K, 32K, 64K, and 128K bytes. The default setting is 64K bytes.
LSI Logic Embedded MegaRAID(tm) is always 64K bytes.
[Read Policy]:
Select No Read Ahead, Adaptive Read Ahead, or Always Read Ahead. The default
setting is No Read Ahead.
[Default Write Policy]:
Select either Write Through or Write Back. The default setting is Write Back.
[IO Policy]:
Select either Direct IO or Cached IO. The default setting is Direct IO.
[Access Policy]:
Select Read Write, Read Only, or Blocked. The default setting is Read Write.
[Disk Cache Policy]:
Select Unchanged, Enabled or Disabled. The default setting is Unchanged.