6 usability features, 7 flexibility features, Usability features – Avago Technologies MegaRAID SAS 8204ELP User Manual
Page 29: Flexibility features
Summary of SAS RAID Controller Characteristics
1-13
Copyright © 2005-2007 by LSI Logic Corporation. All rights reserved.
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Complies with the PCI-X Addendum to the PCI Local Bus
Specification, Revision 1.0a
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Provides unequaled performance through the Fusion-MPT
architecture
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Provides high throughput and low CPU utilization to offload the host
processor
1.6.6
Usability Features
The following list describes the usability features of the SAS RAID
controllers:
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Simplifies cabling with point-to-point, serial architecture
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Supports smaller, thinner cables that do not restrict airflow
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Provides drive spin-up sequencing control
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Provides up to two LED signals for each PHY to indicate link activity
and faults
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Provides an I
2
C interface for enclosure management
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Supports the internal SAS Sideband signal SFF-8485 (SGPIO)
interface
1.6.7
Flexibility Features
These features increase the flexibility of the SAS RAID controllers:
•
Supports a Flash ROM interface, a nonvolatile static RAM
(NVSRAM) interface, and a Double Data Rate (DDR) 1 or DDR 2
SDRAM interface
Note:
The SAS 8208ELP RAID Controller and the SAS 8208XLP
RAID controller do not use DDR memory.
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Offers a flexible programming interface to tune I/O performance
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Allows mixed connections to SAS or SATA II targets
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Leverages compatible connectors for SAS and SATA II connections
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Allows grouping of up to four PHYs in a single quad port to form a
wide port
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Allows programming of the World Wide Name