Ta b l e 5 - 1 . C on f i g u r a t i o n Fe at ur e s

(continued)

 

 

Specification

Feature

 

 

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)

 

 

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 at i on o n D i s k Fe a t u r e s

Specification

Feature

 

 

Support for hard disk drives with capacities of more

Yes

than 8 gigabytes (GB)

 

 

 

Online RAID level migration

Yes

 

 

RAID remapping

Yes

 

 

No reboot necessary after expansion

Yes (Only if virtual sizing

 

is enabled.)

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.

PERC 3/DC and PERC 3/DCL Features

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Dell 3 manual Smart Technology, Configuration on Disk