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24 About PERC 6 and CERC 6i 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 (values) 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 N/A
Redundant
Path Support
Yes N/A N/A N/A
a
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.
b
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_PERC6.1_UG.book Page 24 Wednesday, April 15, 2009 4:18 PM