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1-18 Overview
Copyright © 2009 by LSI Corporation. All rights reserved.
Cache function Write-back, write-through, adaptive read ahead,
non-read ahead, read ahead, cache I/O, direct I/O
Multiple virtual drives
per controller
Up to 64 (this value is dependent on the firmware)
Online capacity
expansion
Ye s
Dedicated and global
hot spares
Ye s
Hot-swap devices
supported
Ye s
Non-drive devices
supported
Ye s
Mixed capacity drives
supported
Ye s
Number of external
connectors
• MegaRAID SAS 9280-4i/4e RAID controller – One
SFF-8088 x4 external mini SAS connector
• MegaRAID SAS 9280-8e RAID controller – Two SFF-
8088 x4 external mini SAS connectors
• MegaRAID SAS 9280DE-8e RAID controller – Two
SFF-8088 x4 external mini SAS connectors
Number of internal
connectors
• MegaRAID SAS 9240-4i RAID controller – One
SFF-8087 x4 internal mini SAS connector
• MegaRAID SAS 9240-8i RAID controller – Two
SFF-8087 x4 internal mini SAS connectors
• MegaRAID SAS 9260-4i RAID controller – One
SFF-8087 x4 internal mini SAS connector
• MegaRAID SAS 9260-8i RAID controller – Two
SFF-8087 x4 internal mini SAS connectors
• MegaRAID SAS 9260DE-8i RAID controller – Two
SFF-8087 x4 internal mini SAS connectors
• MegaRAID SAS 9261-8i RAID controller – Two
SFF-8087 mini-SAS 4i connectors
• MegaRAID SAS 9280-4i/4e RAID controller – One
SFF-8087 x4 internal mini SAS connector
Hardware exclusive
OR (XOR) assistance
Ye s
Direct I/O Ye s
Architecture Fusion-MPT
Table 1.2 MegaRAID 6Gb/s SAS RAID Controller Features (Cont.)
Specification
MegaRAID SAS 9240-4i, SAS 9240-8i, SAS 9260-4i,
SAS 9260-8i, SAS 9260-8e, SAS 9260DE-8i, SAS
9280-4i/4e, SAS 9280-8e, and SAS 9280DE-8e RAID
Controllers