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3.3.3
Fault Tolerance
3.3.4
Power Supply Requirements for the ServeRAID-MR10M
Controller
3-6
Table 3.4
Array Performance Features (Cont.)
Specification
Stripe Sizes
Maximum Number of Concurrent
Commands
Support for Multiple Initiators
Table 3.5
shows the fault tolerance features of the ServeRAID-MR10M
SAS/SATA Controller.
Table 3.5
Fault Tolerance Features
Specification
1
Support for SMART
Optional Battery Backup for
Cache Memory
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 ServeRAID-MR10M SAS/SATA 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
ServeRAID-MR10M SAS/SATA Controller Characteristics
ServeRAID-MR10M SAS/SATA Controller
8, 16, 32, 64, or 128 Kbyte
255
Yes
ServeRAID-MR10M SAS/SATA Controller
Yes
iBBU battery backup. 3.7V/500mAH battery
pack; up to 72 hours of data retention for
512 Mbytes
Automatic
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