Intel®
Server System SR1625UR TPS
Hard Disk Drive Support
Revision 1.5
Intel order number E47487-007
51
7.2.2.4.2
Intel RAID Cache support
To further enable support for hardware RAID, the active midplane provides a 244-pin mini-
DIMM connector (J8C1), supporting a single registered ECC non-parity DDR2-667 MHz Mini-
DIMM to provide Intel RAID cache. Supported mini-DIMM capacities range from 128 MB to 1
GB.
Note: For a list of Intel validated mini-DIMMs, use the Server Configurator Tool available at
Intel
®
RAID Smart Battery Backup Module
With an Intel
®
RAID Smart Battery Backup module installed, data loss is prevented when data
is still present in the RAID Cache Module and power is unexpectedly lost. Depending on the
cache module capacity used, the battery backup unit can provide 48 to 72 hours of battery
backup power to allow data stored in the RAID cache to be processed. A 2x10 connector (J9A2)
is used to attach the battery backup unit to the midplane.
7.3
Hot-Swap SAS/SATA Backplane
The system supports a multifunctional SAS/SATA backplane supporting the following features:
Vitesse VSC410 enclosure management controller
o
External non-volatile Flash ROM
o
Four I
2
C interfaces
o
Compliance with SCSI Accessed Fault Tolerant Enclosures (SAF-TE)
specification
o
Compliance with Intelligent Platform Management Interface (IPMI)
Eight 2.5 inch compatible hot-swap hard drive connectors
Power for an optional tape drive or two additional 2.5 inch SAS/SATA hard drives
Hard Drive Status and Fault LEDs for each hard drive connector
Card edge connectors for most interconnects, including:
o
Midplane
o
Control Panel
o
Slimline SATA Optical Drive
Temperature Sensor
FRU EEPROM
One 2x4-pin Power Connector
7.3.1
SAS/SATA Backplane Layout
The hot-swap backplane installs on the back side of the hot-swap drive bay inside the system.
Alignment features on the system and backplane assembly make for easy tool-less installation.
For instructions on installing and removing the backplane, see the
Intel
®
Server System
SR1625UR Service Guide
. The following diagram shows the layout of components and
connectors found on the board.