Intel® RAID Controller SRCSAS18E User’s Guide
22
Array Performance Features
Table 5 shows the RAID Controller SRCSAS18E array performance features.
Fault Tolerance
Table 6 shows the RAID Controller SRCSAS18E fault tolerance features.
Table 5. Array Performance Features
Specification
Intel
®
RAID Controller SRCSAS18E
PCI Express* Host
Data Transfer Rate
2.5 Gigabit/s per lane
Drive Data Burst Rate 3 Gigabit/s per port or 300 MB/s
Maximum
Scatter/Gathers
26 elements
Maximum Size of I/O
Requests
6.4 Mbytes in 64 Kbyte stripes
Maximum Queue
Tags per Drive
As many as the drive can accept
Stripe Sizes
8, 16, 32, 64, or 128 Kbyte
Maximum Number
of Concurrent
Commands
255
Support for Multiple
Initiators
Yes
Table 6. Fault Tolerance Features
Specification
Intel
®
RAID Controller SRCSAS18E
Support for SMART
1
1. The Self Monitoring Analysis and Reporting Technology (SMART) detects up to 70 percent of
all predictable disk drive failures. In addition, SMART monitors the internal performance of all
motors, heads, and drive electronics.
Yes.
Optional Battery
Backup for Cache
Memory
Intel
®
RAID Portable Cache Module 2 battery backup. 4.8V/880mAH
battery pack. Up to 72 hours of data retention for 256 MB.
Drive Failure Detection
Automatic
Drive Rebuild Using
Hot Spares
Automatic
Parity Generation and
Checking
Yes
