User's Manual

storage configuration, such as adding or removing physical disks from a virtual disk or changing a RAID
level.
You can rescan a controller object to:
• View new disks attached to the controller.
• Enable the operating system to recognize a virtual disk.
• Enable Storage Management to display a new virtual disk.
• Allow the virtual disk to use the additional space after is it expanded.
• Update the status of an offline disk.
• Update information in a clustered configuration after a failover of cluster resources.
NOTE: For SCSI controller-based systems, if you want to rescan all controllers, perform the
procedures listed in the Performing A Global Rescan section. If you want to rescan only the
components attached to a particular controller, perform the procedures listed in the Rescanning
The Controller section.
NOTE: To view the new physical disk, click the system name displayed at the top of the left
pane, or select View → Refresh from the menu bar on the browser.
Related Links
Preparing To Remove
Time Delay In Displaying Configuration Changes
When you change the storage configuration, Storage Management quickly generates SNMP traps in
response to the configuration changes. The Storage Management, Management Information Base (MIB) is
also updated to reflect storage configuration changes. However, it may take up to five minutes to update
the MIB with the most recent storage configuration. For this reason, there is a time delay of up to five
minutes between the receipt of an SNMP trap and the ability to identify the configuration changes by
querying the Storage Management MIB. This time delay is particularly notable when creating a new virtual
disk or performing an unmirror or split mirror on a RAID 1-concatenated virtual disk. You can minimize
this time delay by performing a controller rescan.
Related Links
Rescanning The Controller
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