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Configuring Main System
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1
1.1.5 Installing GV-VMS
Before You Start
For optimal performance, please refer to the following recommendations before installing GV-VMS:
It is highly recommended to use separate hard disks; one for installing Windows OS and GV-VMS
software, while the other for storing recorded files and system logs.
When formatting the hard disks, select NTFS as the file system.
When GV-VMS is running, it is not recommended to perform disk defragmentation at the same
time.
Since the size of transmitted data from IP cameras may be quite large and reach beyond the
transfer rate of a hard disk, you should note the total of recording frame rates that you can assign
to a single hard disk when single-stream (Main or Sub stream) recording is applied, as listed
below:
Frame rate limit in a single hard disk with single-stream recording applied
H.264 H.265
Video Resolution
Frame Rate
(fps)
Bit Rate
(Mbit/s)
Frame Rate
(fps)
Bit Rate
(Mbit/s)
1.3 MP (1280 x 1024) 660 5.05 N/A N/A
2 MP (1920 x 1080) 660 7.01 N/A N/A
3 MP (2048 x 1536) 440 10.48 660 5.35
4 MP (2048 x 1944) 330 11.65 550 7.74
5 MP (2560 x 1920) 220 16.48 660 6.73
8 MP (3840 x 2120) 550 14.13 N/A N/A
12 MP (4000 x 3000) 330 14.47 N/A N/A
Note: The data above was determined using the bitrate listed above, hard disks with average
R/W speed above 110 MB/s, and with single-stream recording (Main or Sub stream) recording is
applied.
Recording Main and Sub streams together will require significantly more hard drive space than
single-stream recording. When single- stream (either Main or Sub stream) recording is applied, up to
22 channels can be assigned to one hard disk. But when dual-stream (Main and Sub streams)
recording is enabled, only up to 11 channels can be recorded to one hard disk.
The frame rate limit is based on the resolution of video sources. The higher the resolutions, the lower
the frame rates you can assign to a single hard disk. In other words, the higher the frame rates you
wish to record, the more hard disks you’ll need. For detailed information of recording frame rates, refer
to the user’s manual of the IP camera that you wish to connect to.
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