Users Guide

Quick Access To Storage Status And Tasks
This section describes various methods to determine the status or health of the storage components on your system and how to
quickly launch the available controller tasks.
Topics:
• Storage Health
• Hot Spare Protection Policy
• Storage Component Severity
• Storage Properties And Current Activity
• Alerts Or Events
• Monitoring Disk Reliability On RAID Controllers
• Using Alarms To Detect Failures
• Using Enclosure Temperature Probes
• Time Delay In Displaying Configuration Changes
Storage Health
The Storage Dashboard displays the combined status for each controller and lower-level storage components. For example,
if the health of the storage system has been compromised due to a degraded enclosure, both the enclosure Health and the
controller severity on the Storage Dashboard display a yellow exclamation mark to indicate a Warning severity. If a controller
on the Storage Dashboard displays a Warning or Critical status, perform the following actions to investigate the cause:
● Click Check Alert Log to display the Alerts Log. Review the Alert Log for alerts relating to the status of the controller and
its lower-level components. The Check Alert Log link is only displayed when the controller displays a Warning or Critical
status.
● Select the controller and investigate the status of the lower-level components. For more information, see Storage
Component Severity.
● Click the virtual disk that is in degraded state to display the Physical Disk Properties page.
NOTE:
The virtual disk link is displayed only if the physical disks that are part of the virtual disk, are in a Warning or Critical
state.
For more information on how the status of lower-level components is rolled up into the status displayed for the controller, see
Determining The Health Status For Storage Components.
Hot Spare Protection Policy
The Set Hot Spare Protection Policy task allows you to set or modify the number of hot spares to be assigned to the virtual
disks.
After you set the number of assigned hot spares, any deviation from the protection policy threshold triggers an alert based on
the severity level you set.
Storage Component Severity
Component status is indicated by the severity. A component with a Warning or Critical/Failure status requires immediate
attention to avoid data loss, if possible. The status of the component indicates the combined status of the components and its
lower-level objects.
It may be useful to review the Alert Log for events indicating why a component has a Warning or Critical status.
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