Apple Xserve RAID User's guide User's Guide download pdf (Page 62)

62 Chapter 7

RAID 30

RAID level 30 essentially combines RAID 3’s dedicated parity (reliability) and RAID 0’s

striping (performance). RAID 30 requires at least six drives. This level provides high

reliability; one drive in each data pair could fail and data would still be available.

To create a RAID 30 conﬁguration, you use RAID Admin and Disk Utility. See the document

“Using RAID Admin and Disk Utility” on the CD that came with your system for instructions.

RAID 50

RAID level 50 combines RAID 5’s distributed parity (reliability) and RAID 0’s striping

(performance). This level requires at least six drives and offers high data-transfer

performance.

To create a RAID 50 conﬁguration, you use RAID Admin and Disk Utility. See the document

“Using RAID Admin and Disk Utility” on the CD that came with your system for instructions.

What’s Next?

With this overview of RAID technology, you can plan the Xserve RAID conﬁguration that best

suits your needs. The next chapter provides detailed examples of the conﬁguration options

for each RAID level on the Xserve RAID system.

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Apple Xserve RAID User's guide User's Guide Page 62