Fault Tolerance Features; Software Utilities; Table 6-5. Fault Tolerance Features - Dell PowerEdge Expandable RAID Controller 3 User Manual

Ta b l e 6 - 4 . A r r a y P e r f o r m a n c e Fe a t u r e s (continued)
Specification
Drive data transfer rate
Maximum scatter/gathers
Maximum size of I/O requests
Maximum queue tags per drive
Stripe sizes
Maximum number of concurrent
commands
Support for multiple initiations

Fault Tolerance Features

The fault tolerance features are listed in Table 6-5.
Ta b l e 6 - 5 . Fa u l t To l e r a n c e Fe a t u r e s
Specification
Support for SMART
Optional battery backup for cache memory
Drive failure detection
Drive rebuild using hot spares
Manual replacement of drives without system
shutdown
Parity generation and checking

Software Utilities

The software utilities are listed in Table 6-6.
Feature
160 MB/s
26 elements
6.4 MB in 64 KB stripes
As many as the drive can accept.
2 KB, 4 KB, 8 KB, 16 KB, 32 KB,
64 KB, or 128 KB
255
Yes
Feature
Yes
Yes. Up to 72 hours data
retention.
Automatic
Automatic
Yes
Yes
PE RC 3/QC Fe atures
77