Ta b l e 6 - 1 . C o n f i g u r at i on Fe a t u r e s (continued)

Specification

Feature

 

 

Hot swap devices supported

Yes

 

 

Non-disk devices supported

No

 

 

Mixed-capacity hard drives

Yes

 

 

Number of 16-bit internal connectors

2

 

 

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

Specification

Feature

 

 

Support for hard 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)

 

 

More than 200 qtags per array

Yes

 

 

Hardware clustering support on the board

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.

PERC 3/QC Features

75

Page 77
Image 77
Dell 3 manual Smart Technology