Surveon NVR7312(2U), User Manual

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RAID Configuration : Below is a list of the level of fault tolerance for different RAID
levels:
RAID Level Max. No. of Failed Drives without Data Loss
0 No fault tolerance. 1 drive fails and the data is lost.
1 1 (mirrored pair)
5 1
6 2
Hard drive for storage : It is recommended to use hard drives that are of the same
brand, capacity, rotation speed and same model in an enclosure. RAID arrays use a
“least-common-denominator” approach meaning the maximum capacity used in
each drive for comprising a logical configuration is the maximum capacity of the
smallest drive.
Note: Hard drives dedicated for OS will have certain storage capacities that are
unavailable for use towards the total storage capacity.
WARNING
Make sure all enclosure tray slots are filled a hard drive tray (with or with a hard drive) as an
empty tray slot may affect the airflow efficiency of the enclosure!
The hard drives should only be installed into the system AFTER the enclosure has been rack
mounted as the combined weight will be too heavy to handle.
Handle hard drives with extreme care and observe all ESD prevention methods when installing
drives.
Only use screws supplied with the system package. Longer screws may damage the hard drives
or its trays.