Dell 3 User Manual

Page 67

PERC 3/DC and PERC 3/DCL Features

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

Mixed capacity hard disk drives

Yes

Number of 16-bit internal connectors

Cluster support

Yes (PERC 3/DC only)

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

Feature

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

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.)