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3.3.3
Fault Tolerance
3.3.4
Power Supply Requirements for the ServeRAID M5110 SAS/SATA
Controller
3-8
Table 3.5
shows the fault tolerance features of the ServeRAID M5110
SAS/SATA controller.
Table 3.5
Fault Tolerance Features
Specification
1
Support for SMART
Drive Failure Detection
Drive Rebuild Using Hot Spares Automatic
Parity Generation and Checking Yes
1.
The Self Monitoring Analysis and Reporting Technology (SMART) detects
up to 70 percent of all predictable drive failures. In addition, SMART
monitors the internal performance of all motors, heads, and drive
electronics.
All power is supplied to the controller through the PCI Express 3.3V rails
and the 12V rail. Onboard switching regulator circuitry operating from the
3.3V rails and the 12V rail provide the necessary voltages. The following
states determine the typical current consumption of the controller:
•
State 1: During a hard reset
•
State 2: During a disk stress test
•
State 3: While sitting idle at the DOS prompt
The supply voltages are 12V ± 8 percent (from PCI edge connector only)
and 3.3V ± - 9 percent (from PCI edge connector only).
the power supply for the controller for each of the three states at the
different voltages.
ServeRAID M5110 SAS/SATA Controller Characteristics
ServeRAID M5110 SAS/SATA Controller
Yes
Automatic
Table 3.6
lists
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