Table 3.8 | Array Performance Features (Cont.) | |
|
|
|
|
| MegaRAID SAS 9240, SAS 9260, SAS |
Specification |
| 9261, and SAS 9280 RAID Controllers |
|
| |
Maximum queue tags per drive | As many as the drive can accept | |
|
|
|
Stripe sizes |
| 8 Kbytes, 16 Kbytes, 32 Kbytes, 64 Kbytes, |
|
| 128 Kbytes, 256 Kbytes, 512 Kbytes, or |
|
| 1 Mbyte |
|
| |
Maximum number of concurrent | 255 | |
commands |
|
|
|
|
|
3.3.3Fault Tolerance
Table 3.9 lists the fault tolerance features for the MegaRAID 6Gb/s SAS RAID controllers.
Table 3.9 Fault Tolerance Features
| MegaRAID SAS 9240, SAS 9260, SAS 9261, |
Specification | and SAS 9280 RAID Controllers |
|
|
Support for SMART1 | Yes |
Drive failure detection | Automatic |
|
|
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.
3.3.4Electrical Characteristics
This subsection provides the power supply requirements for the
MegaRAID 6Gb/s SAS RAID controllers.
3.3.4.1Power Supply Requirements for SAS 9240 RAID Controllers
All power is supplied to the SAS 9240 RAID controllers 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
Technical Specifications |
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