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DNS-3200 User’s Manual
74
6.1.2 Online RAID Level Migration
RAID level migration allows you to migrate from a specific level of array
to another one. This function allows online RAID level migration or
online RAID expansion, even when the system is carrying out I/O. You
do not have to restart the system. Together with mirror split, this function
provides a complete system backup and repair strategy.
Online RAID level migration:
1.
Select the array to split using the right button of the mouse.
2.
On the array menu, select
Transform
. The Online RAID level
migration window appears (as shown below).
3.
Select the RAID level to migrate.
Notes:
1. You can not migrate major RAID levels to
minor ones. A new RAID level needs to be of the
same level or higher than the original array.
2. If the system fails during migration, once the
system is restarted, the migration will continue.
3. If the hard disk were damaged during migra-
tion, as long as both arrays before and after the
migration are available with fault tolerance, no
data would be lost.
4. Online RAID level migration can build a maxi-
mum array capacity of 2.199TB (1MB =
1,000,000 bytes and 1TB = 1,000,000MB).
Source Target
Select the disks from
the new array
Select the RAID
Select the capacity
Select if supports
array
array
level to migrate
of the new array
distributed
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