Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 29)

Summary of SAS RAID Controller Characteristics 1-13
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– Complies with the PCI-X Addendum to the PCI Local Bus
Specification, Revision 1.0a
•
Provides unequaled performance through the Fusion-MPT
architecture
•
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:
•
Simplifies cabling with point-to-point, serial architecture
•
Supports smaller, thinner cables that do not restrict airflow
•
Provides drive spin-up sequencing control
•
Provides up to two LED signals for each PHY to indicate link activity
and faults
•
Provides an I
2
C interface for enclosure management
•
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.
•
Offers a flexible programming interface to tune I/O performance
•
Allows mixed connections to SAS or SATA II targets
•
Leverages compatible connectors for SAS and SATA II connections
•
Allows grouping of up to four PHYs in a single quad port to form a
wide port
•
Allows programming of the World Wide Name