
Components, Continued
SCSI Termination MegaRAID uses active termination on the SCSI bus conforming to Alternative 2 of the
specifications. Termination enable/disable is automatic through cable detection.
SCSI Firmware The firmware handles all RAID and SCSI command processing and also supports:
Feature | Description |
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Disconnect/ | Optimizes SCSI Bus seek. |
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Reconnect |
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Tagged Command | Multiple tags to improve random access |
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Queuing |
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Scatter/Gather | Multiple address/count pairs |
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Up to 255 simultaneous commands with elevator sorting and |
| |
| concatenation of requests per SCSI channel |
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Stripe Size | Variable for all logical drives: 2 KB, 4 KB, 8 KB, 16 KB, 32 |
|
| KB, 64 KB, or 128 KB. |
|
Rebuild | Multiple rebuilds and consistency checks with |
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| priority. |
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|
RAID Management The RAID utilities manage and configure the RAID system and MegaRAID, create and manage multiple disk arrays, control and monitor multiple RAID servers, provide error statistics logging and online maintenance:
•MegaRAID Configuration Utility
•WebBIOS Configuration Utility
•Power Console
•MegaRAID Manager
MegaRAID Configuration Utility It configures and maintains RAID arrays, formats disk drives, and manages the RAID system. It is independent of any operating system.
WebBIOS Configuration Utility It allows you to configure and manage a RAID system on a remote server over the Internet.
Power Console Plus It configures, monitors, and manages RAID servers from any Windows NT network node or remote server.
MegaRAID Manager A
Cont’d
Chapter 4 Features | 31 |