Table 1.2

MegaRAID 6Gb/s SAS RAID Controller Features (Cont.)

 

 

 

 

 

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

Specification

 

Controllers

 

 

Cache function

Write-back, write-through, adaptive read ahead,

 

 

non-read ahead, read ahead, cache I/O, direct I/O

 

 

Multiple virtual drives

Up to 64 (this value is dependent on the firmware)

per controller

 

 

 

 

Online capacity

Yes

expansion

 

 

 

 

Dedicated and global

Yes

hot spares

 

 

 

 

Hot-swap devices

Yes

supported

 

 

 

 

Non-drive devices

Yes

supported

 

 

 

 

Mixed capacity drives

Yes

supported

 

 

 

 

Number of external

MegaRAID SAS 9280-4i/4e RAID controller – One

connectors

 

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

MegaRAID SAS 9240-4i RAID controller – One

connectors

 

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

Yes

OR (XOR) assistance

 

 

 

 

Direct I/O

 

Yes

 

 

 

Architecture

 

Fusion-MPT

 

 

 

1-18Overview

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