Dell Precision T7400 (Late 2007) - Manual (Page 48)

48 Advanced Features
Synchronizing a RAID Volume (Virtual Disk)
When a RAID volume is synchronized, the firmware synchronizes the data on
the secondary hard drive(s) with the data on the primary hard drive of the
RAID level 1 volume. Follow these steps to start synchronization for a RAID
level 1 volume:
1 Select Synchronize Virtual Disk.
2 Press Y to start the synchronization or N to cancel it.
Activating a RAID Volume
A RAID volume can become inactive if, for example, it is removed from one
SAS 6/iR controller or computer and moved to another one. The Activate
Virtual Disk option allows you to reactivate an inactive RAID volume that
has been added to a system. This option is only available when the selected
RAID volume is currently inactive.
1 Select Activate Virtual Disk.
2 Press Y to proceed with the activation or press N to abandon it.
After a pause, the RAID volume will become active.
NOTE: Activation of migrated RAID volume is only supported when the migrated
RAID volume is in an optimal state and contains all the installed hard drives.
Deleting a RAID Volume
NOTICE: Before deleting a RAID volume, be sure to back up all data on the RAID
volume that you want to keep.
Follow these steps to delete a selected RAID volume:
1 Select Delete Virtual Disk.
2 Press Y to delete the RAID volume or press N to cancel the deletion.
After a pause, the RAID volume will be deleted.
NOTICE: If the hard drives of a RAID volume are removed and the RAID volume’s
configuration is subsequently deleted from the SAS 6/iR controller, the hard drives
show up only as simple drives with no RAID association if they are placed back onto
the same SAS 6/iR controller. Once the RAID volume is removed from a SAS 6/iR
controller using the RAID Configuration Utility (regardless of whether the hard
drives are present), the RAID volume cannot be restored.