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J.3Operation of Independent utility Appendix J Maintenance of TOSHIBA RAID
Create Array
This section explains how to select option and build array. The [Create Array] option
can be selected only when there is a drive not assigned. To build array, follow the
procedure below.
1. Put the cursor on [Create Array] in [Main Menu] and press [Enter] key.
2. Select RAID level. Put the cursor on [RAID-1] or [RAID-0] and press [Enter] key.
3. Put the cursor on the drive to be incorporated in [Physical Drive] and press
[Space] key to select a drive. When a drive selected, the status of [Physical
Drive] changes to “ON LINE”. When selecting plural, repeat the same operation.
4. After selecting a drive, press [Enter] key.
5. The [RAID Parameter] is displayed. The setting of parameter in the following
table can be made.
Put the cursor on the item to be set and press [Enter] key. Put the cursor on the
value to be set and press [Enter] key.
Table J-5
Item of parameter set
Option Explanation
DONE
When this option is selected after completing of setting in [Create
Array] menu, building of RAID is decided.
Stripe Size
Designates the size of segment written in each disk of RAID-0
(Striping). The Stripe Size is only 64KB. This parameter can be set
only in the RAID-0 configured by two drives.
Write Cache
Displays the setting of Write Cache of drive. This can select “Enable
(use)” or “Disable (not use)”. The default is “Enable (use)”.
Degrade Bootup
Displays if boot up OS or not When the array is degraded. “Yes
(boot up)” or “No (not boot up)” is selected. The default is “Yes (boot
up)”. This option can be selected in RAID-1 (Mirroring).
MBR Protection
Displays the setting of protection function of MBR (Master Boot
Record). “Enable (protect)” or “Disable (not protect)” is selected.
The default is “Disable (not protect)”.
S.M.A.R.T.
Displays the setting of failure prediction function of drive. “Enable”
or “Disable” is displayed. The default is “Enable”.
Initialize
Initialize the MBR of array. Normally, it is done when the array is
made newly. For details, refer to “ Initializing array”. Initializing sets
the rebuild limit to 10GB.
After completing the detailed setting, array is initialized. Put the cursor on
“Initialize” and press [Enter] key. Put the cursor on the “Yes” and press [Enter]
key. If the array is initialized, date of array is lost. Selecting “No” dose not
initialize.
J-14 [CONFIDENTIAL] QOSMIO G20 Maintenance Manual (960-511)