ACTi GNR-3000 V3.0.09 - Manual (Page 26)

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GNR-3000 System Administrator’s Manual
26
Get the Hard Disks Ready for Recording
GNR supports flexible storage system of up to four hard disks. Thanks to the built-in software
RAID (Redundant Array of Independent Disks) provided by Windows Embedded 7 operating
system, the installed hard disks can be configured to one or more arrays for the following
benefits:
The hard disks can appear as a one single volume of large storage size.
User gets to define how the data is stored regarding data protection against the physical
failure of one or more hard disks.
Increase the speed of writing and reading data.
The software RAID task of Windows runs on the computer’s CPU, requiring no extra hardware
attached to the computer, which saves you considerable cost and effort on installation. In
addition, as Windows configures the arrays at the disk volume level, a disk is not necessary to
serve only one array, and you can make full use of its unmatched disk space to make another
array.
There are several types of software RAID configurations available in Windows, and it is good
to know whichever RAID type is suitable for your system. After reading through this chapter,
you will be able to choose suitable RAID type for your video surveillance project and get the
storage disks ready for recording.
Please note that, Windows refers to a single accessible storage file system as Volume instead
of RAID, and the creation of software RAIDs is carried out during the process of making
volumes. When you make the volumes with Disk Management utility (please refer to Start
Creating Disk Volumes on page 28), your selection of Volume Type will correspond to a
specific RAID type.