Panasonic WJ-ND400 Guide d'installation télécharger pdf (Page 18)

● HDD fault-tolerance system

The RAID function is available as the HDD fault-tolerance

system.

In addition to the RAID 5 mode that recovers data when a sin-

gle hard disk drive becomes faulty, there is RAID 6 mode that

can recover data even if 2 hard disk drives become faulty.

Operation in the RAID mode is one of the solutions as the HDD

fault-tolerance system that prevents data loss when handling a

large amount of data on a large amount of storage.

Note:

 • TouseintheRAID5ortheRAID6mode,itisnecessaryto

install 3 or more hard disk drives and 4 or more hard disk

drives respectively.

 • LogicaldiskcapacitywhenusingintheRAID5mode

Logical disk capacity = Capacity of the smallest among the

hard disk drives in the recorder x (number of the hard disk

drives in the recorder – 1)

 • LogicaldiskcapacitywhenusingintheRAID6mode

Logical disk capacity = Capacity of the smallest among the

hard disk drives in the recorder x (number of the hard disk

drives in the recorder – 2)

 • Dependingonthemodeloftheharddiskdrive,theavail-

able capacity may be a few percent smaller.

■ Recording/Playback

● Stable image recording and playback

High throughput is achieved by equipping the camera port and

the client PC port individually. It brings stable image reception

using up to 64 cameras and up to 16 client PCs (depending on

the network environment).

Recording

Images from up to 64 cameras can be recorded on hard disk

drives in a single recorder. Recording images in JPEG,

M-JPEG and MPEG-4 format are available.

Playback

Images recorded on hard disk drives in a single recorder can

be transmitted to up to 16 PCs, and they can be played on the

PCs.

Live image transmission

Live images from up to 64 cameras can be transmitted to up

to 16 PCs via a single recorder.

C 4

C 3

C 2

Q 1

B 4

B 3

Q 2

P 1

A 4

Q 3

P 2

C 1

Q 4

P 3

B 2

B 1

P 4

A 3

A 2

A 1

RAID 6

Network cameras

Recorder

Image data

HDD

Network cameras

Recorder

Image data

HDD

Network cameras

Recorder

Image data

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 63 64

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Panasonic WJ-ND400 Guide d'installation Page 18

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