Adaptec 2074700-R - ICP Vortex GDT8514RZ RAID Controller, Руководство пользователя

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134 Software Installation and User’s Guide
ICP RAID Console
Figure 10-85. Expand Popup Window
The Expand popup window contains three major functions:
Note:
If the entire hard disk capacity is not used when configuring a RAID 1 host drive, you
cannot use the remaining capacity to expand the array drive in the future.
Note:
If ICPCON is closed, migration of the RAID level may not complete.
To migrate or expand an array drive, the state must be ready . The data on the array drive
remains intact and is not affected by the expansion.
Warning: When starting an expand process, the unused capacity of the current array
components (i.e. "Use free Logical Drive space") is activated and the drive enters a
build state. At this point the array is put in the non-redundant build process, so it is
very important to create a full backup before you start this process. If during the
build process a disk fails, then the array changes to
idle = not functioning, and the
expansion process continues until the array drive enters the fail state .
Add RAID 1 Component
The Add RAID 1 Component option allows you to add, to a logical drive which is member
of an array drive, another logical drive as a mirror drive (RAID 1).
To access this function, from the Advanced Setup menu:
•
Select the Configure Array Drives option and press Enter to display the Select Array
Drive screen.
•
Select an array drive and press Enter to display the Array Drive window.
•
Select the Add RAID 1 Component option and press Enter.
Example : You have configured an array drive with 4 logical drives. One logical drive has
failed and the array drive has gone into the fail state. Another failure would cause data
loss. Unfortunately, you find another logical drive which is likely to fail (for example, you
hear a strange noise coming from it, or its grown defect counter explodes). If you initiate a
hot plug, it is very likely that this critical logical drive will also fail, resulting in data loss.
To avoid this problem, mirror a new, good logical drive to the critical one. When the
Function Description
Use free Logical
Drive space
Conversion of free space on the logical drives into a separate host
drive.
Change RAID
Type
Migration of the RAID level of an array drive.
RAID 0 to RAID 4 and vice versa
RAID 0 to RAID 5 and vice versa
Add hard disk to
array
Expansion of the capacity of an array drive.