|
2.3.7 Creating Striped Volumes with Parity RAID-5 Volumes
Striped volumes with parity are also called RAID-5 volumes and can be created using three to 32 disks.
They provide fault tolerance by calculating parity information, which can be used to recreate the data on the
other disks, and writing it to a block on one disk as part of the striping operation. Data is striped across all
the disks in the volume, while parity information is written to one disk in each stripe. The parity information
can be used to regenerate the missing data should one disk fail. If you lose more than one disk, however, all
your data will be lost.
As with mirrored volumes, RAID-5 volumes cannot be extended. However, RAID-5 volumes offer more
efficient disk utilization than mirrored volumes. You lose the storage space of one disk in the RAID-5
volume because it is used for parity information. To create a RAID-5 Volume, do the following:
•
Click on the
START
button to display the Start Menu
•
Point to
ALL PROGRAMS
•
Click on
ADMINISTARTIVE TOOLS
•
Then click on
COMPUTER MANAGEMENT
•
In the console three, expand the
STORAGE
node
•
Then click on
DISK MANAGEMENT
•
In the details pane, right-click the unallocated space on the dynamic disk on which you
want to create a simple volume
•
On the context menu, click
NEW VOLUME
to open the New Volume Wizard
•
Click
NEXT
to continue
•
On the Select Volume Type window, select
RAID-5
•
Then click
NEXT
•
Select the amount of space to be used for the simple volume
•
Then click
NEXT
•
Next, select a drive letter for the simple volume, or choose to mount the new volume to
an empty NTFS folder
•
If necessary, select the file system for the simple volume
•
Then click
NEXT
•
Click
FINISH
to complete the process
|