High Performance, High Reliability Video File System (VFS)
We/jointfilesconvert/405860/bgate’s VFS is a specialized DVR le system that minimizes the hard disk drive header’s movement. It also always saves data
into consecutive sectors. By using VFS, the DVR can maximize HDD’s performance and could improve reliability and life-cycle
of HDD.
IPFR(Intelligent Power Failure Recovery) Technology
The SMPS is specially designed to protect circuit control so data on the HDD will not be destroyed during a sudden power failure. In some
cases where data is lost, the IPFR minimizes this loss within the last single frame instead of the entire block.
Diverse bad block management
If any trouble occurs inside the HDD, the HDD will mark the relevant block to prevent further access. If there are too many defects to record,
the DVR will hand over recording to the next HDD. The DVR shows the total quanitity of bad blocks which were found both from the DVR
and reported by the S.M.A.R.T function. The user may then perform data backups before the HDD completely fails. If any trouble occurs,
the DVR will send notication by e-mail, relay, popup windows, and other methods.
Mirroring
When saving data into two HDDs at the same time, if one HDD fails, the user can still recover recorded data from the other HDD. Since
banks and casinos require strict regulations against losing data, mirroring technology is mainly used.
Mass strage
Aside from the default communication network port, the HD DVR provides additional Gigabit Ethernet ports. WEBGATE’s storage(NVS04R)
can expand the DVR’s HDD capacity up to 64TB using this port. The NVS04R has two network ports that can be cascaded up to 8 units
without an additional hub network device. If the Mirroring function is in use, two 64TB storages are used to save the same video data.
Additionally, external eSATA storage which may have RAID technology can be connected to HD DVR’s eSATAport, and this can expand the
DVR storage up to 16TB.
HD-CCTV DVR Featur es
At-the-PC Playback
The HDD within the DVR can be accessed directly from a PC. The HDD can connect to a PC through USB or eSATA.
Windows cannot support the HDD’s read/write directly, however through the CMS software, the operator can do all the neces-
sary work such as Playback, Search, and Backup. When the DVR is broken, the user can play recorded data and create backups
using CMS. Since all these processes only need to be able to read, the HDD will not show any trouble after being re-installed
to the DVR.
When a full HDD backup is necessary, the above method provided is a simple solution.
Gigabit Connect
eSATAe
AT
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