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Intel® Server Platform SR6850HW4 TPS System Overview
Revision 1.0
Intel order number D23151-001
19
2.7.2 Hot Swap Controller
Two hot-swap controllers are on the SCSI Backplane Board. The primary function of each
hot-swap controller is as follows:
Implements the SAF-TE command set
Controls the SCSI hard disk drive power, activity and fault LEDs
Provides a path for management information via the SCSI bus
Retrieves hard disk drive fault status, SCSI Backplane Board temperature, and fan
failure information via IPMB
Queries the status of the Power Distribution Board by retrieving information from the
IMM via IPMB
Controls hard disk drive power-on and power-down, facilitating hot-swapping
2.8 Reliability, Availability, Serviceability, Usability, Manageability
(RASUM)
The Server Platform SR6850HW4 supports the following reliability, availability,
serviceability, usability and manageability (RASUM) features:
Reliability features
- Machine check architecture
- Error Checking Code (ECC) in main memory and processor caches
- ECC, parity, and protocol checking on the FSB
- Parity on the Hub Link (HL-1.5) interface
- Parity checking on PCI buses
- RAID On Motherboard (ROMB) with the Intel RAID Smart Battery which provides
battery back-up to the DDR2 400MHz DIMM for disk cache
- Voltage and temperature monitoring throughout the system
Availability features
- Hot-plug PCI Express and PCI-X
- Hot-Plug Memory Boards
- Redundant hot-swap power supplies
- Redundant power cords
- Redundant hot-swap system fans
- Hot-swap SCSI hard drives
- Teaming and failover Ethernet ports
Serviceability features
- Tool-less installation and removal of major sub-assemblies
- Color-coded parts to identify serviceable components
Green: Hot-swap or hot-plug components
Blue: Non-hot-swap components
- System ID buttons and LEDs
- LED indicators for system health, configured options, and activity