NEC Express5800/A1080a User Manual page 354

Express5800 series
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Hardware
Prameters for VD Definition
Listed below are parameters for Configuration Wizard.
Item
RAID Level
Strip Size
Access Policy
Read Policy
Write Policy
WrtThru for BAD BBU
IO Policy
Disk Cache Policy
Disable BGI
Select Size
Parameter
RAID0 / RAID1 / RAID5 / RAID6
/ RAID 00 / RAID 10 / RAID 50 /
RAID60
8KB / 16KB / 32KB / 64KB /
128KB / 256 KB / 512 KB /
1024 KB
RW / Read Only / Blocked
Normal / Ahead / Adaptive
WBack / WThru
Checked / Unchecked
Direct / Cached
NoChange / Enable / Disable
No / Yes
Desired VD size (MB)
IMPORTANT:
BGI (Back Ground Initialize) is available only for RAID5 VD
configured with five or more HDDs.
354
Remarks
RAID 00, and RAID 60 are not
supported.
Recommended value: 64KB
Recommended value: RW
Recommended value: Normal
WBack: WriteBack
WThru: WriteThru
Select a mode when WriteBack is
specified for Write Policy.
Checked: Normal WriteBack
Unchecked: Constant WriteBack
Recommended value: Checked
Recommended value: Direct
Recommended value: Disable
Specify whether to perform
Background Initialize after
creation of VD.
Recommended value: No
Specify the VD size appropriate
to RAID level to be configured.

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