Background Taskswww.3ware.com 155and cancel a rebuild by using the Remove Drive link on the Maintenancepage.If you do not have hot-swap carriers and do not want to boot the operatingsystem and launch 3DM, you can also cancel a rebuild by powering down thesystem, physically removing a drive, and installing another one that you wantto use. Then when you start 3BM, the unit will appear as degraded and youcan rebuild it, using the steps described under “Rebuilding Units through3BM” on page 152.Setting Background Task RateIn 3DM, you can set the relative performance of background tasks(initializing, rebuilding/migrating, and verifying) in relation to normal I/Oactivity (reading and writing to disk).Controllers can have separate settings for Rebuild/Migrate Rate and VerifyRate. (Initialization occurs at the Rebuild rate.)To change the background task rate1 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 forRebuild and Verify Tasks.The furthest left buttons set the firmware to the fastest rebuild and verifysettings. This means that maximum processing time will be given torebuilds or verifies rather than I/O. The furthest right buttons set thefirmware to the slowest rebuild and verify settings, giving maximumprocessing time to I/O.After you select one of the radio buttons, the page refreshes, and amessage at the top confirms the change you have made.Note: If you want to pause the rebuild process through 3DM, you can do so bysetting or changing the rebuild schedule on the Scheduling page. If you set aschedule for rebuilds that does not include the current time, the rebuild process willpause.
