Users Guide

Table Of Contents
PERC FD33xD/FD33xS, PERC H745, PERC H345 Adapter, PERC H755 , PERC H755 Adapter and PERC 755N
controllers, if any of the selected physical drives are in the spun down state, the system displays a message that
indicates the IDs of the spun down drives and the delay in executing tasks on them.
NOTE: For PERC H310 Adapter, PERC H310 Mini Monolithic, PERC H310 Mini Blades, PERC H700, PERC H710 Adapter,
PERC H710 Mini Blades, PERC H710 Mini Monolithic, PERC H710P Adapter, PERC H710P Mini Blades, PERC H710P Mini
Monolithic, PERC H800, PERC H810 Adapter, PERC H330 Adapter, PERC H330 Mini Monolithic, PERC H330 Mini
Blades, PERC H330 Embedded, PERC H730 Adapter, PERC H730 Mini Monolithic, PERC H730 Mini Blades, PERC
H730P Adapter, PERC H730P Mini Monolithic, PERC H730P Mini Blades, PERC H730P Slim, PERC H740P Adapter,
PERC H740P Mini Monolithic, PERC H830 Adapter, PERC H840 Adapter, PERC H730P MX , PERC H745P MX and
PERC FD33xD/FD33xS, PERC H745, PERC H345 Adapter, PERC H755 , PERC H755 Adapter and PERC 755N if the
disk group has free space available, you can expand the virtual disk capacity. To expand virtual disk capacity, click
Expand Capacity.
2. Click Continue to go to the next page or Exit Wizard if you want to cancel.
To locate Reconfigure In Storage Management
1. In the Server Administrator window, under the system tree, expand Storage to display the controller objects.
2. Expand a controller object.
3. Select the Virtual Disks object.
4. Select Reconfigure from the Available Tasks drop-down box.
5. Click Execute.
Virtual Disk Task - Reconfigure Step 2 of 3
Does my controller support this feature? See Supported Features.
The virtual disk reconfigure Step 2 page enables you to select the RAID level and size for the reconfigured virtual disk.
If you selected Expand Capacity in Step 1, this page allows you to expand the capacity of the virtual disk.
To Reconfigure a Virtual Disk (Changing the RAID Level and Size): Step 2 of 3
1. Select the new RAID level for the virtual disk The available RAID levels depend on the number or physical disks selected
and the controller. The following describes the possible RAID levels:
Depending on the controller, Concatenated enables you to combine the storage capacity of several disks or to create a
virtual disk using only a single physical disk. For information on whether the controller supports a single physical disk or
two or more when using Concatenated, see Number Of Physical Disks Per Virtual Disk. Using Concatenated does not
provide data redundancy nor does it affect the read and write performance.
Select RAID 0 for striping This selection groups n disks together as one large virtual disk with a total capacity of n
disks. Data is stored to the disks alternately so that they are evenly distributed. Data redundancy is not available in this
mode. Read and write performance is enhanced.
Select RAID 1 for mirroring disks This selection groups two disks together as one virtual disk with a capacity of one
single disk. The data is replicated on both disks. When a disk fails, the virtual disk continues to function. This feature
provides data redundancy and good read performance, but slightly slower write performance. The system must have at
least two physical disks to use RAID 1.
Select RAID 5 for striping with distributed parity This selection groups n disks together as one large virtual disk with a
total capacity of (n-1) disks. When a disk fails, the virtual disk continues to function. This feature provides better data
redundancy and read performance, but slower write performance. The system must have at least three physical disks to
use RAID 5.
Select RAID 6 for striping with additional parity information This selection groups n disks as one large virtual disk with
a capacity of (n-2) disks. Two sets of parity information are alternately stored on all disks. The virtual disk remains
functional with up to two disk failures.
Select RAID 10 for striping over mirror sets This selection groups n disks together as one large virtual disk with a total
capacity of (n/2) disks. Data is striped across the replicated mirrored pair disks. When a disk fails, the virtual disk
continues to function. The data is read from the surviving mirrored pair disk. This feature provides the best failure
protection, read and write performance. The system must have at least four physical disks to use RAID 10.
NOTE:
Virtual Disks 141