Smart Technology; Configuration On Disk; Table 6-2. Configuration On Disk Features - Dell PowerEdge Expandable RAID Controller 3 User Manual

Ta b l e 6 - 1 . C o n f i g u r a t i o n Fe a t u r e s (continued)
Specification
Hot swap devices supported
Non-disk devices supported
Mixed-capacity hard drives
Number of 16-bit internal connectors

SMART Technology

The PERC 3/QC 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 non-volatile random access memory (NVRAM) on PERC 3/QC and
on the disk drives attached to PERC 3/QC. If PERC 3/QC is replaced, the
new PERC 3/QC controller detects 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 6-2 lists the Configuration on Disk features.
Ta b l e 6 - 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 drives with capacities of more
than 8 gigabytes (GB)
Online RAID level migration
RAID remapping
No reboot necessary after expansion
More than 200 qtags per array
Hardware clustering support on the board
Feature
Yes
No
Yes
2
Feature
Yes
Yes
Yes
Yes (only if virtual sizing is
enabled)
Yes
Yes
NOTE: The PERC 3/QC
does not support
clustering.
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.
PE RC 3/QC Fe atures
75