Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 127)

Changing An Existing Configuration by Migrating
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3 Click OK when 3DM2 asks you to confirm your selection.
The page refreshes, and a message at the top confirms the change that you
have made.
To change or disable Rapid RAID Recovery for an existing unit
through 3BM
1 At the main 3BM screen, select the unit by highlighting it and pressing
Enter .
An asterisk appears in the left-most column to indicate that it is selected.
2 Tab to the Maintain Unit button and press Enter .
3 On the pop-up menu, select Configure and press Enter .
4 In the Configure Disk Array screen, Tab to the field Rapid RAID
Recovery and select Fast Rebuild/Shutdown , Rebuild, or Disable .
A warning message appears, asking you to confirm your selection.
5 Type ‘Y’.
6 Make any other unit configuration changes you wish to implement and
press
Enter .
Changing An Existing Configuration by
Migrating
You can convert one RAID configuration into another while the unit is online.
This process is known as RAID Level Migration (RLM).
You can use RAID Level Migration to make two main types of configuration
changes:
• RAID Level (for example, a RAID 1 to a RAID 5)
• Unit Capacity Expansion (for example, adding a 4th drive to a 3-drive
RAID 5)
You can also use RLM to change the stripe size of a unit.
Note: A unit being migrated can still be used (I/O still continues), however the
performance will be affected while the migrating task is active. You can control how
much effect this has on performance by setting the background task rate. For more
information, see “Setting Background Task Rate” on page 162.