12 Intel® RAID Controller SASWT4I Hardware User’s Guide
Technical Specifications
The design and implementation of the Intel
®
RAID Controller SASWT4I minimizes
electromagnetic emissions, susceptibility to radio frequency energy, and the effects of
electrostatic discharge.
Table 2 lists the specifications for the Intel
®
RAID Controller SASWT4I.
LEDs
The host adapters have four LEDs, labeled A0–A3, that turn green to indicate an activity
condition on any of the four phys. There are four LEDs, labeled LNP0–LNP3, that turn
yellow to indicate a fault condition on any of the four phys. See Figure 4 for LED
locations.
The host adapters have two light pipes routed through the PCI bracket:
• One light pipe turns green to indicate activity on any phy.
• The other light pipe is bi-color. It flashes green to indicate the adapter heartbeat, or it
turns yellow when the adapter firmware detects a fault condition.
Table 2. Specifications
Specification Intel
®
RAID Controller SASWT4I
Operating Voltage +3.3 V, +12 V
Card Size Low-profile MD2 PCI Express* adapter card size (6.600 inches by 2.713
inches)
Array Interface to
Host
PCI Express* Rev 1.0A, x4 lane width 2.5 Gbps
SAS Bus Speed 3 GBps per port, point-to-point
SAS Controller One LSI* SAS 1064E controller
SAS / SATA Ports 4 internal ports
Firmware 2 MB in reflashable flash ROM
Compatible Devices • Mixed capacity, mixed SATA II and SAS in different enclosures
• Non-disk devices, including expanders
Cabling • Small, thin cables that do not restrict airflow
• Shared connectors for multiple drive types
Redundant
Configuration
RAID configuration is stored and config on disk (COD)
Enclosure
Management
In-band SES enclosure management support, including fault LEDs
(Expander backplane must be used in order to support fault LED. No fault
LED option is possible or expected in direct HDD connect mode).
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