4.9.8SCSI Firmware

The MegaRAID SCSI 320-1 firmware handles all RAID and SCSI command processing and also supports the features listed in Table 4.7.

Table 4.7

SCSI Firmware

 

 

 

Feature

 

Description

 

 

 

Disconnect/

 

Optimizes SCSI bus seek

reconnect

 

 

 

 

Tagged command

Multiple tags to improve random access

queuing

 

 

 

 

Scatter/gather

Multiple address/count pairs

 

 

Multi-threading

Up to 255 simultaneous commands with elevator sorting

 

 

and concatenation of requests per SCSI channel

 

 

 

Stripe size

 

Variable for all logical drives: 2, 4, 8, 16, 32, 64, or

 

 

128 Kbytes

 

 

 

Rebuild

 

Multiple rebuilds and consistency checks, with user-

 

 

definable priority

 

 

 

4.10 RAID Management

RAID management is provided by software utilities that manage and configure the RAID system and MegaRAID SCSI 320-1, create and manage multiple disk arrays, control and monitor multiple RAID servers, provide error statistics logging, and provide online maintenance. They include:

￿MegaRAID BIOS Configuration Utility

￿WebBIOS Configuration Utility

￿Power Console Plus

￿MegaRAID Manager

4.10.1MegaRAID BIOS Configuration Utility

The BIOS Configuration Utility (<Ctrl><M>) is used to configure and maintain RAID arrays, format hard drives, and manage the RAID system.

RAID Management

4-9

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