Avago Technologies 3ware 9650SE-12ML (Channel) - Manual (Page 184)

Maintaining Units
172 3ware SAS/SATA RAID Software User Guide, Version 9.5.1
Cancelling a Rebuild and Restarting It with a
Different Drive
When you start a rebuild from 3BM, you cannot cancel it in 3BM interface.
However, if you have drives in hot swap bays, you can remove and replace the
drive, rescan the controller (Alt-R), and then select a new drive to be used in
the rebuild. You can also boot the operating system, launch 3DM, and cancel a
rebuild by using the
Remove Drive link on the Maintenance page.
If your drives are not in hot swap bays and you do not want to boot the
operating system and launch 3DM, you can also cancel a rebuild by powering
down the system, physically removing a drive, and installing another one that
you want to use. Then when you start 3BM, the unit will appear as degraded
and you can rebuild it, using the steps described under “Rebuilding Units
through 3BM” on page 169.
Setting Background Task Rate
In 3DM, you can set the relative performance of background tasks
(initializing, rebuilding/migrating, and verifying) in relation to normal I/O
activity (reading and writing to disk).
Controllers can have separate settings for Rebuild/Migrate Rate and Verify
Rate. (Initialization occurs at the Rebuild rate.)
To change the background task rate
1 Choose Management > Controller Settings from the menu bar.
2 In the Background Task Rate section of the Controller Settings page,
select one of the five radio buttons to indicate the relative task rate for
Rebuild and Verify Tasks.
The furthest left buttons set the firmware to the fastest rebuild and verify
settings. This means that maximum processing time will be given to
rebuilds or verifies rather than I/O. The furthest right buttons set the
firmware to the slowest rebuild and verify settings, giving maximum
processing time to I/O.
After you select one of the radio buttons, the page refreshes, and a
message at the top confirms the change you have made.
Note: If you want to pause the rebuild process through 3DM, you can do so by
setting or changing the rebuild schedule on the Scheduling page. If you set a
schedule for rebuilds that does not include the current time, the rebuild process will
pause.