Smart Technology; Configuration On Disk; Table 5-2. Configuration On Disk Features - Dell PowerEdge Expandable RAID Controller 3 User Manual

Ta b l e 5 - 1 . C o n f i g u r a t i o n Fe a t u r e s (continued)
Specification
Flashable firmware
Hot swap devices supported
Non-disk devices supported
Mixed capacity hard disk drives
Number of 16-bit internal connectors
Cluster support

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

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.
Ta b l e 5 - 2 . C o n f i g u r a t i o n o n D i s k Fe a t u r e s
Specification
Support for hard disk drives with capacities of more
than 8 gigabytes (GB)
Online RAID level migration
RAID remapping
No reboot necessary after expansion
Feature
Yes
Yes
No
Yes
2
Yes (PERC 3/DC only)
Feature
Yes
Yes
Yes
Yes (Only if virtual sizing
is enabled.)
PE RC 3/ DC and PE RC 3/DC L Fe atures
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.
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