Accusys ExaSAN A12S2-PS, Руководство пользователя

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4. How to Use
User Guide Page 4-23
4.1.7.4 Migrations
Different from Expansion, which enlarges an array by adding hard drives to a fixed RAID
level, Migration changes the RAID level of an array. It allows live changes to the RAID
without the need to delete the array and rebuild. This can be useful when new drives
have been added, and a new array type needs to be created.
Example 1:
RAID 5 (12 drives) –Migrating

RAID 0 ( >11 drives)
RAID 5 (12 drives) –Migrating

RAID 6 ( >13 drives)
RAID 5 (12 drives) –Migrating

RAID 0+1 ( >22 drives)
Example 2:
Example 3:
Note
The new hard drive must larger than existing drives of array.
Follow the steps below to select an array to migrate. This changes the RAID level, such
as from RAID 1 to RAID 5.
1.
Select the array to migrate. From the drop down menu, select the RAID level to
migrate to, and then select the total number of drives to include in the array. A “+”
appears above the drive(s) to be added, and a “-” sign above the drive(s) to be
removed.