Intel SRCSAS18E User Manual

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Intel® RAID Controller SRCSAS18E User’s Guide
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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