NEC N8100-1422F, User Manual

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Configuring Your Server 4-83
Parameters for VD Definition
Listed below are parameters for Configuration Wizard.
Item Parameter Remarks
RAID Level RAID 0 / RAID 1 / RAID 5 / RAID 6 /
RAID 00 / RAID 10 / RAID 50 /
RAID60
RAID 00 and RAID 60 are not
supported.
Strip Size 8 KB / 16 KB / 32 KB / 64 KB / 128 KB
/ 256 KB / 512 KB / 1024 KB
Recommended value: 64KB
Access Policy RW / Read Only / Blocked Recommended value: RW
Read Policy Normal / Ahead / Adaptive Recommended value: Normal
Write Policy WBack / WThru WBack: WriteBack
WThru: WriteThru
WrtThru for
BAD BBU Checked / Unchecked Select a mode when WriteBack is
specified for Write Policy.
Checked: Normal WriteBack
Unchecked: Constant WriteBack
Recommended value: Checked
IO Policy Direct / Cached Recommended value: Direct
Disk Cache
Policy NoChange / Enable / Disable Recommended value: Disable
Disable BGI No / Yes Specify whether to perform
Background Initialize after creation of
VD.
Recommended value: No
IMPORTANT:
„
BGI (Back Ground Initialize) is available only for RAID5 VD
configured with five or more HDDs or RAID6 VD configured with
seven or more HDDs.
„
To use RAID 5, RAID 6, or RAID 50 with Internal RAID Controller
(N8103-116 or equivalent), you need to additionally install the
optional N8103-119 RAID Upgrade Kit.
„
If N8103-119 RAID Upgrade Kit is not installed, do not select
"RAID5" that may appear in [RAID Level] box. If selected, you
will fail to save the configuration information. In such a case, you
need to define a VD again from the beginning.