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PERC 3/QC Features 75
NOTE: The PERC 3/QC
does not support
clustering.
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
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 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.
Hot swap devices supported Yes
Non-disk devices supported No
Mixed-capacity hard drives Yes
Number of 16-bit internal connectors 2
Table 6-1. Configuration Features
(continued)
Specification Feature
Table 6-2. Configuration on Disk Features
Specification Feature
Support for hard 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)
More than 200 qtags per array Yes
Hardware clustering support on the board Yes