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Appendix E Serial Attached SCSI BIOS Configuration Utility E-43
E.4.1.2 RAID Level Support
The following items describe the RAID level support for these servers:
■ RAID 1 (mirroring) is supported.
■ RAID 0 (striping) is supported.
■ LSI RAID 1E or IME (mirroring over more than two drives) is not supported.
■ RAID 0+1 and 1+0 are not supported by the SAS1064 controller.
E.4.1.3 RAID Volume Support
The following items describe the RAID volumes supported for these servers:
■ Up to two active RAID volumes are supported per system (RAID 0, RAID 1 or
both).
■ A striped volume (RAID 0) can contain up to four disk drives.
■ A mirrored volume (RAID 1) can contain up to two disk drives.
■ One disk drive can be set up as hot-spare for a RAID 1 array (one hot-spare disk
per controller maximum).
■ Volumes are transparent to the OS and are seen as a single physical disk drive no
matter how many drives they contain.
E.4.1.4 RAID Combination Support
Possible RAID Combinations in a four-HDD server are listed below:
■ Two drives RAID 0 + two drives non-RAID
■ Two drives RAID 1 + two drives non-RAID
■ Two drives RAID 0 + two drives RAID 1
■ Two drives RAID 0 + two drives RAID 0
■ Two drives RAID 1 + Two drives RAID 1
■ Three drives RAID 0 + one drive non-RAID
■ Four drives RAID 0
■ Two drives RAID 1 + one hot-spare drive + one drive non-RAID
■ Four drives non-RAID