Avago Technologies Cache Protection for RAID Controller Cards - Manual (Page 35)

LSI Corporation
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12Gb/s MegaRAID SAS RAID Controllers User Guide
April 2014
Chapter 3: MegaRAID SAS RAID Controller Characteristics
Technical Specifications
3.3.2 Array Performance Features
The following table shows the array performance features for the 12Gb/s MegaRAID SATA+SAS RAID controllers.
Card size MegaRAID SAS 9341 RAID controller: Low-profile PCIe adapter card size (68.90 mm ×
152.35 mm)
MegaRAID SAS 9361 RAID controller: Low-profile PCIe adapter card size (68.90 mm ×
167.65 mm)
MegaRAID SAS 9380-4i4e RAID controller: Low-profile PCIe adapter card size (68.90 mm ×
167.65 mm)
MegaRAID SAS 9380-8e RAID controller: Low-profile PCIe adapter card size (68.90 mm ×
167.65 mm)
Array interface to the host PCIe Rev. 3.0
PCI Express bus data transfer rate  Up to 8GB/s per lane
 x8 lane width
Serial port 4-pin RS232-compatible connector (for manufacturing use only)
SAS controller MegaRAID SAS 9341 RAID controller: LSISAS3008 Single SAS controller
MegaRAID SAS 9361 RAID controller: LSISAS3108 Single SAS controller
MegaRAID SAS 9380-4i4e RAID controller: LSISAS3108 Single SAS controller
MegaRAID SAS 9380-8e RAID controller: LSISAS3108 Single SAS controller
SAS bus speed 12GB/s
SAS ports SAS connectors with four SAS ports each
Cache configuration The MegaRAID SAS 9361, 9380-4i4e, and 9380-8e controllers support the following
cache configuration:
 1 GB – 72b arrangement (5) 128Mbx16, Double Data Rate III (DDR3) at 1866 MHz with
ONFI Cache Offload Support
Size of flash ROM for firmware 16 MB
NVSRAM 32 KB for storing RAID configurations
Table 9 Array Performance Features
Specification
MegaRAID SAS 9341-4i RAID Controller, MegaRAID SAS 9341-8i RAID Controller,
MegaRAID SAS 9361-4i RAID Controller, MegaRAID SAS 9361-8i RAID Controller,
MegaRAID SAS 9380-4i4e RAID Controller, MegaRAID SAS 9380-8e RAID Controller
PCI Express host data transfer rate 8GB/s per lane
Drive data transfer rate 12GB/s per lane
Maximum scatter/gather I/O 80 elements
Maximum size of I/O requests 6.4 MB in 64-KB strips
Maximum queue tags per drive As many as the drive can accept
Strip sizes 8 KB, 16 KB, 32 KB, 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB
Maximum number of concurrent
commands 255
Table 8 RAID Controller Specifications (Continued)
Specification
MegaRAID SAS 9341-4i RAID Controller, MegaRAID SAS 9341-8i RAID Controller,
MegaRAID SAS 9361-4i RAID Controller, MegaRAID SAS 9361-8i RAID Controller,
MegaRAID SAS 9380-4i4e RAID Controller, MegaRAID SAS 9380-8e RAID Controller