Chapter 12. Troubleshooting222 3ware Serial ATA RAID Controller User GuideSoftware Installation ProblemsThe 3ware RAID controller was configured without problems, butthe system does not bootThe problem could be one or more of the following:• The BIOS may have changed the order of the boot devices. Check yoursystem BIOS boot sequence.• The 3ware BIOS will only boot from the first unit listed in 3BM. You canchange the unit from which the 3ware controller boots by moving it to thetop of the list of units by highlighting the unit and pressing the 'Page Up'/'Page Down' keys.• The operating system is installed on a device that is not in your system’sboot order. Use your system’s Setup utility to include the StorSwitchcontroller in the boot order.• If your operating system was installed before you configured your RAIDunits, you may have overwritten your operating system. Remember thatcreating or deleting a RAID unit overwrites any existing data on themember drives. Reinstall your operating system.• There may be a compatibility problem between the motherboard systemBIOS and the 3ware BIOS. Check the 3ware website (www.3ware.com)to see if your motherboard is compatible with the 3ware BIOS, and checkwith your motherboard manufacturer for potential BIOS updates.A unit shows up as unusable, because of missing drives:Unusable Arrays:3 drive 64K RAID 5 558.77 GB (Unit 1)SATA - Maxtor 6B300S0 279.86 GB (Port 6)The unit has some but not all of its members available. Theunit will be unusable. If this unit is your boot device, yoursystem will not boot. You must either return the missingdisks to complete the unit, or release the member disks bydeleting the incomplete unit(s) listed in the display.Remember that deleting a RAID unit overwrites any existingdata on the member drives.CAUTION: Do not delete the inoperable unit and recreate it, as this willoverwrite the data and make data recovery very difficult.If you get this error, contact technical support at http://www.3ware.com/support/.
