Users Guide

Resetting controller configuration
You can reset the configuration for a controller. This operation deletes virtual disk drives and unassigns all
hot spares on the controller. It does not erase any data other than removing the disks from the
configuration. Reset configuration also does not remove any foreign configurations. The real-time
support of this feature is available only in PERC 9.1 firmware. Reset configuration does not erase any data.
You may recreate the exact same configuration without an initialize operation which may result in the
data being recovered. You must have server control privilege.
NOTE: Resetting the controller configuration does not remove a foreign configuration. To remove a
foreign configuration, perform clear configuration operation.
Resetting controller configuration using web interface
To reset the controller configuration:
1. In the iDRAC Web interface, go to Overview → Storage → Controllers → Troubleshooting.
The Controllers Troubleshooting page is displayed.
2. From the Actions drop-down menu, select Reset Configuration for one or more controllers.
3. For each controller, from the Apply Operation Mode drop-down menu, select when you want to
apply the settings.
4. Click Apply.
Based on the selected operation mode, the settings are applied.
Resetting controller configuration using RACADM
To reset the controller configuration, use the following command:
racadm storage resetconfig:<Controller FQDD>
For more information, see the iDRAC RACADM Command Line Reference Guide available at dell.com/
esmmanuals.
Switching the controller mode
On PERC 9.1 and later controllers, you can change the personality of the controller by switching the
mode from RAID to HBA. The controller operates similar to a HBA controller where the drivers are passed
through the operating system. The controller mode change is a staged operation and does not occur in
real time. Before you change the mode of the controller from RAID to HBA, ensure that:
• The RAID controller supports the controller mode change. The option to change the controller mode
is not available on controllers where the RAID personality requires a license.
• All virtual disks must be deleted or removed.
• Hot spares must be deleted or removed.
• Foreign configurations must be deleted or cleared.
• All physical disks that are in a failed state, must be removed.
• Any local security key associated with SEDs must be deleted.
• The controller must not have preserved cache.
• You have server control privileges to switch the controller mode.
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