Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 17)

SAS Controller Descriptions 1-3
Copyright © 2007 by LSI Corporation. All rights reserved.
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SATA II, which enables communication with other SATA II devices
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Serial Management Protocol (SMP), which communicates
topology management information directly with an attached SAS
expander device
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Serial Tunneling Protocol (STP), which enables communication with
a SATA II device through an attached expander
1.2 SAS Controller Descriptions
The 1078-based SAS RAID controllers are described as follows:
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The MegaRAID SAS 8704ELP PCI Express 1078-based Low-Profile
Serial-Attached SCSI/SATA II Disk Array Controller controls four
internal SAS/SATA ports through one Mini SAS 4i internal connector.
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The MegaRAID SAS 8708ELP PCI Express 1078-based Low-Profile
Serial-Attached SCSI/SATA II Disk Array Controller controls eight
internal SAS/SATA ports through two Mini SAS 4i internal connectors
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The MegaRAID SAS 8708EM2 PCI Express 1078-based Serial-
Attached SCSI/SATA II Disk Array Controller controls eight internal
SAS/SATA ports through two SFF-8087 Mini SAS 4i internal
connectors
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The MegaRAID SAS 8880EM2 PCI Express 1078-based Serial-
Attached SCSI/SATA II Disk Array Controller controls eight external
SAS/SATA ports through two SFF-8088 Mini SAS 4x external
connectors
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The MegaRAID SAS 8888ELP PCI Express 1078-based Low-Profile
Disk Array RAID Controller has one I/O processor. This processor
controls eight ports through two (x4 SAS Port) SFF-8088 Mini SAS
4x external connectors and two (x4 SAS Port) SFF-8087 Mini SAS
4i internal connectors, configurable through a SAS mux.
1.3 General Description
The MegaRAID 1078-based SAS RAID controllers bring 3.0 Gbit/s Serial
Attached SCSI and 3.0 Gbit/s SATA II performance to host adapter,
workstation, and server designs. The controllers support internal and