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3 About Your RAID Controller

This chapter provides an overview of the features of your Adaptec RAID controller.

Standard RAID Controller Features

• Support for SAS disk drives, SATA/SATA II disk drives, and SATA and SAS Solid State Drives (SSDs)

• Flash ROM for updates to controller rmware, BIOS, and the Adaptec RAID Conguration utility

• Disk drive hot-swapping

• Event logging and broadcasting, including email notication messages

• Multiple options for creating and managing RAID arrays—A browser-based software application

(maxView Storage Manager), a BIOS-based utility (ARC), a command line utility (ARCCONF) (see

Managing Your Storage Space on page 64)

• Native command queuing (NCQ), which lets disk drives arrange commands into the most efcient

order for optimum performance

• Support for disk drive enclosures with SES2 enclosure management hardware

• Support for a ash backup module (see Adding a Flash Backup Module on page 18)

• Support for Adaptec maxCache™ SSD read and write caching (see Modifying Cache Settings on page

84)

Note: Adaptec maxCache is supported on Adaptec Series Q controllers only.

• Power-management of disk drives in your storage space to reduce cooling and electricity costs (see

Modifying Power Management Settings on page 84)

• Audible alarm

• I/O statistics logging

Array-level Features

Note: Not all features are supported by all controllers. For more information, see the

maxView Storage Manager User's Guide.

• Support for RAID 0, RAID 1, RAID 5, RAID 10, RAID 50, and simple volumes

• Support for hybrid RAID 1 and RAID 10 arrays comprised of hard drives and Solid State Drives (SSDs)

• (Adaptec Series 6 Controllers Only) Support for JBOD disks (appear as a physical disk drives to the

operating system; not redundant)

• Support for hot spares (global and dedicated)

• Support for automatic failover, so arrays are automatically rebuilt when a failed drive is replaced

(applies to redundant arrays in SES2- or SAF-TE-enabled disk drive enclosures only)

• Optimized disk utilization, which ensures that the full capacity of all disk drives can be used, even if

the disk drives vary in size

• Online capacity expansion, so you can increase the capacity of an array without recreating it

• Support for array migration from one RAID level to another

Advanced Data Protection Suite

• Copyback Hot Spare—You can use this feature to move data from a hot spare back to its original

location after a failed disk drive is replaced.

• Striped Mirror (RAID 1E)—A RAID 1 Enhanced array is similar to a RAID 1 array except that data is

both mirrored and striped, and more disk drives can be included.

• (Adaptec Series 6 Controllers Only) Hot Space (RAID 5EE)—A RAID 5EE array is similar to a RAID 5

array except that it includes a distributed spare and must be built from a minimum of four disk drives.

• Dual Drive Failure Protection (RAID 6)—A RAID 6 array is similar to a RAID 5 array except that it

includes two independent sets of parity data instead of one.

• Dual Drive Failure Protection (RAID 60)—A RAID 60 array is similar to a RAID 50 array except that it

includes four independent sets of parity data instead of two.

17Proprietary and Condential to PMC-Sierra, Inc.

Document No.: CDP-00277-02-A Rev. A, Issue:

Serial Attached SCSI RAID Controllers Installation and User's Guide

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