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PERC 3/DC and PERC 3/DCL Features 65
SMART Technology
The PERC 3/DC and PERC 3/DCL self-monitoring analysis and reporting
technology (SMART) detects predictable drive failures. SMART monitors
the internal performance of all motors, heads, and drive electronics.
Configuration on Disk
NOTE: Configuration on
Disk does not work if you
change both the adapter,
and the SCSI connectors
to different connectors on
the new adapter. It works
only if you make one
change at a time.
Configuration on Disk (drive roaming) saves configuration information
both in NVRAM on PERC 3/DC and PERC 3/DCL and on the disk drives
attached to PERC 3/DC and PERC 3/DCL. If PERC 3/DC and PERC
3/DCL are replaced, the new PERC 3/DC and PERC 3/DCL controllers
detect the actual RAID configuration, maintaining the integrity of the data
on each drive, even if the drives have changed channel and/or target ID.
Drive roaming is supported across channels on the same controller. Drive
roaming across channels is not supported when cluster mode is enabled.
Table 5-2 shows the features for Configuration on Disk.
Flashable firmware Yes
Hot swap devices supported Yes
Non-disk devices supported No
Mixed capacity hard disk drives Yes
Number of 16-bit internal connectors 2
Cluster support Yes (PERC 3/DC only)
Table 5-1. Configuration Features
(continued)
Specification Feature
Table 5-2. Configuration on Disk Features
Specification Feature
Support for hard disk drives with capacities of more
than 8 gigabytes (GB)
Yes
Online RAID level migration Yes
RAID remapping Yes
No reboot necessary after expansion Yes (Only if virtual sizing
is enabled.)