Dell PowerEdge H730P, User Manual

Page: 26 / 101

Controller Cache Preservation
The controller is capable of preserving its cache in the event of a system power outage or improper
system shutdown. The PERC H730P controller is attached to a Battery Backup Unit (BBU) that provides
backup power during system power loss to preserve the controller's cache data.
Cache Preservation With NVC
The Non-Volatile Cache (NVC) module allows controller cache data to be stored indefinitely. If the
controller has data in the cache memory during a power outage or improper system shutdown, a small
amount of power from the battery is used to transfer the cache data to a non-volatile flash storage where
it remains until power is restored and the system is booted.
Recovering Cache Data
If a system power loss or improper system shutdown has occurred:
1. Restore the system power.
2. Boot the system.
3. To enter the BIOS Configuration Utility , select Managed Preserved Cache in the controller menu.
If there are no virtual disks listed, all preserved cache data has been written to the disk successfully.
Non-RAID Disks Support
By default, all the disks are in RAID capable unconfigured state. The user can also convert the RAID
capable disks to non-RAID disks using Management Utilities.
Creating A Non-RAID Disk
To create a non-RAID disk, perform the following steps in the BIOS Configuration Utility (<Ctrl> <R>):
1. In the Virtual Disk Mgmnt screen, use the arrow keys to highlight PERC H730P Adapter or Disk
Group # .
2. Press <F2>.
The list of available action is displayed.
3. Click Convert to Non-RAID .
The Convert RAID Capable Disks to Non-RAID window is displayed.
4. Press the down-arrow key to highlight an available physical disk.
5. Press the spacebar to select the disk.
NOTE: An X is displayed beside the selected physical disk(s).
6. Select OK .
26