Dell PowerEdge RAID Controller 6E - Manual (Page 24)

24
About PERC 6 and CERC 6/i Controllers
NOTE:
The maximum array size is limited by the maximum number of drives per
disk group (32), the maximum number of spans per disk group (8), and the size of the
physical drives.
NOTE:
The number of physical disks on a controller is limited by the number of slots
in the backplane on which the card is attached.
Using the SMART Feature
The Self-Monitoring Analysis and Reporting Technology (SMART) feature
monitors the internal performance of all motors, heads, and physical disk
electronics to detect predictable physical disk failures. The SMART feature
helps monitor physical disk performance and reliability.
SMART-compliant physical disks have attributes for which data can be
monitored to identify changes in values and determine whether the values are
within threshold limits. Many mechanical and electrical failures display some
degradation in performance before failure.
Revertible
Hot Spares
Supported Yes Yes Yes Yes
Redundant
Path Support Yes N/A N/A N/A
a. These RAID configurations are only supported on select Dell modular systems.
b. The PERC 6/i adapter supports a battery backup unit (BBU) on selected systems only.
For additional information, see the documentation that shipped with the system.
c. Using the enclosure Hot-Add feature, you can hot plug enclosures to the PERC 6/E adapter
without rebooting the system.
Table 3-1. PERC 6 and CERC 6/i Controller Comparisons (continued)
Specification PERC 6/E
Adapter PERC 6/i Adapter PERC 6/i
Integrated CERC 6/i
Integrated
Dell_PERC6.2_UG.book Page 24 Wednesday, June 24, 2009 6:08 PM