Users Guide
SMART performs predictive failure analysis on each disk and sends alerts if a disk failure is predicted. The RAID controllers check physical disks for failure
predictions and, if found, pass this information to Storage Management. Storage Management immediately displays an alert icon on the disk. Storage
Management also sends an alert to the Alert Log and the Microsoft®Windows®application log.
Related Information:
l "Replacing a Physical Disk Receiving SMART Alerts"
Using Alarms to Detect Failures
Some storage components have alarms. When enabled, these alarms alert you when a component fails. See the following sections for more information:
l "Enable Alarm (Controller)"
l "Enable Alarm (Enclosure)"
Using Enclosure Temperature Probes
Physical disk enclosures have temperature probes that warn you when the enclosure has exceeded an acceptable temperature range. For more information
on using temperature probes, see the following:
l "SMART Thermal Shutdown"
l "Set Temperature Probe Values"
Rescan to Update Storage Configuration Changes
The Rescan task scans the storage attached to the controller's connectors (channels or ports) to verify the currently connected devices or to recognize devices
that have been added to or removed from the connectors. When you do a rescan on a controller object, all storage attached to the controller is rescanned.
Performing a rescan causes the controller to recognize changes in the storage configuration, such as adding or removing physical disks from a virtual disk or
changing a RAID level.
You may want to rescan in the following situations:
l To see new disks attached to the controller.
l To make the operating system recognize a virtual disk.
l To make Storage Management display a new virtual disk.
l After expanding a virtual disk, you may need to rescan the controller so that the virtual disk can use the additional disk space.
l To update the status of an offline disk.
l To display updated information in a clustered configuration after a failover of cluster resources.
Related Information:
l "I/O and Reboot Requirements for Detecting Physical Disk Status Changes"
l "Time Delay in Displaying Configuration Changes"
NOTE: When a controller's I/O is paused, you will not receive SMART alerts.
NOTE: The PERC 3/SC, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, 4e/Di, and CERC ATA100/4ch controllers will not report SMART alerts for unassigned
or hot spare disks.
NOTE: For SCSI controller-based systems, if you want to rescan all controllers, perform a "Global Rescan." If you want to rescan only the components
attached to a particular controller, perform a "Rescan Controller."
NOTE: Clicking the Refresh button in the right pane refreshes only the right pane. To view the new physical disk in the left pane tree view, click the
system name displayed at the top of the left pane, or select View --> Refresh from the browser's menu bar.