LSI MegaRAID SAS User Manual

LSI Corporation
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6Gb/s MegaRAID SAS RAID Controllers User Guide
August 2012
Chapter 1: Overview
Hardware Specifications
Bus  PCI Express 2.0 (for LSISAS2108-based controllers)
 PCI Express 3.0 (for LSISAS2208-based controllers)
Cache function Write-back, write-through, non-read-ahead, read-ahead, cache I/O, direct I/O
NOTE The MegaRAID SAS 9240-4i RAID controller and the MegaRAID SAS 9240-8i RAID
controller do not support write-back mode.
Multiple virtual drives per controller Up to 64 (this value is dependent on the firmware)
Online capacity expansion Yes
Dedicated and global hot spares Yes
Hot-swap devices supported Yes
Non-drive devices supported Yes
Mixed-capacity drives supported Yes
Number of external connectors
 MegaRAID SAS 9280-4i4e 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
 MegaRAID SAS 9280-16i4e RAID controller – One SFF-8088 x4 external mini SAS connector
 MegaRAID SAS 9280-24i4e RAID controller – One SFF-8088 x4 external mini SAS connector
 MegaRAID SAS 9285-8e RAID controller – Two SFF-8088 x4 external mini SAS connectors
 MegaRAID SAS 9285CV-8e RAID controller – Two SFF-8088 x4 external mini SAS connectors
 MegaRAID SAS 9286-8e RAID controller – Two SFF-8088 x4 external mini SAS connectors
 MegaRAID SAS 9286CV-8e RAID controller – Two SFF-8088 x4 mini external SAS connectors
 MegaRAID SAS 9286CV-8e RAID controller – Two SFF-8088 x4 mini external 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 9260-16i RAID controller – Four SFF-8087 x4 internal mini SAS connectors
 MegaRAID SAS 9260CV-4i RAID controller – One SFF-8087 x4 internal mini SAS connector
 MegaRAID SAS 9260CV-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 9265-8i RAID controller – Two SFF-8087 internal mini SAS 4i connectors
 MegaRAID SAS 9265CV-8i RAID controller – Two SFF-8087 internal mini SAS 4i connectors
 MegaRAID SAS 9266-4i RAID controller – One SFF-8087 internal mini SAS 4i connector
 MegaRAID SAS 9266-8i RAID controller – Two SFF-8087 internal mini SAS 4i connectors
 MegaRAID SAS 9270-8i RAID controller – Two SFF-8087 mini-SAS 4i internal connectors
 MegaRAID SAS 9271-4i RAID controller – One SFF-8087 mini-SAS 4i internal connector
 MegaRAID SAS 9271-8i RAID controller – Two SFF-8087 mini-SAS 4i internal connectors
 MegaRAID SAS 9271-8iCC RAID controller – Two SFF-8087 mini-SAS 4i internal connectors
 MegaRAID SAS 9280-4i4e RAID controller – One SFF-8087 x4 internal mini SAS connector
 MegaRAID SAS 9280-16i4e RAID controller – Four SFF-8087 x4 internal mini SAS connectors
 MegaRAID SAS 9280-24i4e RAID controller – Six SFF-8087 x4 internal mini SAS connectors
Table 2 6Gb/s MegaRAID SATA+SAS RAID Controller Features (Continued)
Specification
MegaRAID SAS 9240, SAS 9260, SAS 9261, SAS 9265, SAS 9266, SAS 9270, SAS 9271,
SAS 9280, SAS 9285, and SAS 9286 RAID Controllers

LSI MegaRAID SAS Specifications

General

RAID Levels	0, 1, 5
Ports	8
Form Factor	Low Profile
Operating Systems Supported	Windows, Linux, VMware
SAS Ports	8
BBU Support	Optional
Operating Temperature	0°C to 55°C