Scsi Firmware; Raid Management; Table 4-8. Scsi Firmware Support - Dell PowerEdge Expandable RAID Controller 3 User Manual

SCSI Firmware

The PERC 3/SC firmware handles all RAID and SCSI command processing
and also supports the features shown in Table 4-8.
Ta b l e 4 - 8 . S C S I F i r m w a r e S u p p o r t
Feature Description
Disconnect/ Optimizes SCSI bus utilization
reconnect
Tagged command Multiple tags to improve random access
queuing
Scatter/gather Single command can transfer data to and from different
memory locations
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 KB, 4 KB, 8 KB, 16 KB,
32 KB, 64 KB, or 128 KB.
Rebuild Multiple rebuilds and consistency checks with user-
definable priority

RAID Management

RAID management is provided by software utilities that manage and
configure the RAID system and PERC 3/SC, create and manage multiple
disk arrays, control and monitor multiple RAID servers, provide error
statistics logging, and provide online maintenance. They include:
• PERC 3 BIOS Configuration utility (Ctrl-M)
• Dell Manager
• WebBIOS Configuration Utility
• Dell™ OpenManage™ Array Manager
PERC 3 BIOS Configuration Utility
You can use the PERC 3 BIOS Configuration Utility to configure and
maintain RAID arrays, format disk drives, and manage the RAID system. It
is independent of any operating system. See Chapter 11 "PERC 3 BIOS
Configuration Utility" for additional information.
PE RC 3/SC Fe atures
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