American Megatrends MegaRAID Express 500 - Manual (Page 43)

Chapter 4 Features 29
Hardware Architecture Features
The hardware architecture features include:
Specification Feature
Processor Intel i960RM 100
SCSI Controller Q Logic ISP10160A
Size of Flash ROM 1 MB
Amount of NVRAM 32 KB
Hardware XOR assistance Yes
Direct I/O Yes
Removable cache memory module Yes
SCSI bus termination Active, single-ended or LVD
Double-sided DIMMs Yes
Auxiliary TermPWR source No
Direct I/O bandwidth 132 MB/s
Array Performance Features
The array performance features include:
Specification Feature
Host data transfer rate 132 MB/s
Drive data transfer rate 160 MB/s
Maximum Scatter/Gathers 26 elements
Maximum size of I/O requests 6.4 MB in 64 KB stripes
Maximum Queue Tags per drive 211
Stripe Sizes 2 KB, 4 KB, 8 KB, 16 KB, 32 KB, 64
KB, or 128 KB
Maximum number of concurrent
commands
255