ACTi XNR-4200 V1.02.13 - Manual (Page 26)

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XNR-4200 User’s Manual 1.02.13
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RAID Types Usage Comparison
Different RAID type configuration will have advantages and disadvantages in terms of data
protection against disk failure, more storage space or affordability. It is up to you to decide
whether to have more available storage space or more security according to the conditions of
your site.
RAID Type Advantages Disadvantages Suitable Applications
RAID 0
Biggest possible
usable storage
space and faster
speed of reading
and writing.
No protection
against possible
hard disk failure. If
one disk fails, the
whole RAID
system will stop
working.
Projects with lower security risk
where the potential risk of lost video
records is acceptable while the
usable storage space should be as
big as possible in order to serve
more cameras with one standalone
NVR server.
Example: schools, hospitals, bus
stops, etc.
RAID1
Excellent protection
against failure of
hard disk and twice
faster speed of
reading.
Available storage
space is twice
smaller compared
to RAID 0.
Projects with high security risk and
with small number of cameras due
to the limited storage space.
Example: Currency exchange
booths, etc.
RAID5
Basic protection
against failure of
hard disks and
excellent speed of
reading and writing
(only a bit slower
than RAID 0).
Available storage
space is one disk
less than the
maximum.
Nearly all types of projects that are
somewhat demanding about data
recovery options and yet need to
work with quite many cameras and
therefore would like to use as much
storage space as possible.
Example: Retail, city surveillance,
commercial buildings, etc.
RAID10
Excellent protection
against failure of
hard disks and
excellent writing
and reading
speeds.
Only 50% of the
total storage is
available for writing
data.
Projects with high security risk and
with medium number of cameras.
Example: Branches of banks, etc