Users Guide

Table Of Contents
Clearing foreign configuration using RACADM
To clear foreign configuration:
racadm storage clearconfig:<Controller FQDD>
For more information, see the iDRAC RACADM Command Line Reference Guide available at dell.com/idracmanuals.
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 Storage > Overview > Controllers.
2. From the Actions, 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:
racadm storage resetconfig:<Controller FQDD>
For more information, see the iDRAC RACADM Command Line Reference Guide available at dell.com/idracmanuals.
Switching the controller mode
On PERC 9.1 controllers, you can change the personality of the controller by switching the mode from RAID to HBA. The
controller operates similar to an 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.
PERC 10 and later controllers supports Enhanced HBA mode, replacing HBA from the current controller mode options. However,
PERC 9 still continues to support the HBA mode.
NOTE:
Enhanced HBA supports Non-RAID PDs and all RAID level VDs.
It only supports creation of RAID0, RAID1, and RAID10 VDs.
Enhanced HBA is not supported on PERC 11.
Enhanced HBA mode provides the following features:
Create virtual disks with RAID level 0, 1, or 10.
Present non-RAID disks to host.
Configure a default cache policy for virtual disks as write-back with read ahead.
Configure virtual disks and non-RAID disks as valid boot devices.
Automatically convert all unconfigured disks to non-RAID:
On system boot
Managing storage devices
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