RM23712 TPS
56
Figure 34. Backplane Installation
①.Install backplane vertically into the chassis to align the screw holes with the hooks.
②.Secure the backplane with three screws as shown.
All available SAS/SATA compatible backplanes include the following common features:
12 Gb SAS and 6Gb SAS/SATA
29-pin SFF-8680 12 Gb rated drive interface connectors, providing both power and I/O
signals to attached devices
Hot swap support for SAS/SATA devices
I2C interface from a 3-pin connector for device status communication to the BMC over
slave SMBus
LEDs to indicate drive activity and status for each attached device
5.5.1 SGPIO Functionality
Backplane includes support for a SFF-8485 compliant SGPIO interface used to activate the Status
LED. This interface is also monitored by the microcontroller for generating FAULT, IDENTIFY, and
REBUILD registers that in turn are monitored by the server board BMC for generating corresponding
SEL events.
5.5.2 I2C Functionality
The microcontroller has a master/slave I2C connection to the server board BMC. The
microcontroller is not an IPMB compliant device. The BMC will generate SEL events by monitoring
registers on the HSBP microcontroller for DRIVE PRESENCE, FAULT, and RAID REBUILD in
progress.
5.5.3 12 x 3.5” Drive Hot-Swap Backplane Overview
The 3.5” drive system SKUs within the product family will ship with a 12x drive backplane capable of
supporting 12 Gb/sec SAS drives. Both hard disks and Solid State Drives (SSDs) can be supported
within a common backplane. Each backplane can support SAS devices. However, SATA and mixing
of SATA and SAS devices within a common hot swap backplane are not supported. Supported
devices are dependent on the type of host bus controller driving the backplane.
The front side of the backplane includes 4 x 29-pin drive interface connectors, each capable of
supporting 12 Gb SAS or 6 Gb SAS/SATA. The connectors are numbered 0 thru 3. Signals for all
four drive connectors are routed to a single multi-port mini-SAS HD connector or four SATA host
connector on the back side of the backplane.
5.5.3.1 12G Mini SAS HD 12 Port Backplane
Table 43.12G Mini SAS HD 12 Port Backplane
Picture is being prepared
To Next Page
Loading...
Need help?
General