LaView LV-D0416AS, Руководство пользователя

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The User can choose some or all of the channels to back-up. Go to
【
Configuration
】 → 【
Record
】
and choose a channel, then check the
【
Redundancy
】
box.
Note : Data can only be saved to a normal read/write HDD if Redundancy is not enabled.
Retrieve HDD Redundancy
The User can retrieve backup recordings from the back-up HDD when the main R/W HDD is
damaged or data is lost. First, shut down the DVR and remove the damaged HDD, then restart DVR.
Next, go to
【
Main menu
】
→
【
Storage
】
and set the back-up (redundant) HDD as the main read/write
HDD, after which it can be searched.
5.7. HDD S.M.A.R.T
S.M.A.R.T, or
―Self-Monitoring, Analysis and Reporting Technology‖, is a hard disk technology that
is incorporated into some hard disk drives.
A S.M.A.R.T HDD can analyze the
drive’s head, disc, motor, circuit operation, history and default
security values via monitoring instructions in the HDD and the surveillance software. An alarm will
automatically be sent to the user when a value is outside the scope of the security situation.
Detection parameters for a Seagate HDD, for example, are divided into seven parts: ID detection
code, Attribute Description, Threshold, Attribute Value, Worst, Date, and Status.
1. ID Detection Code
ID detection codes are not uniform; different manufacturers may assign varying attributes to an ID
code number, or increase or decrease the
quantity according to the detected parameter’s quantity.
For example, an ID detection code for Western Digital HDDs
is ―04‖, and the procedure is Start/Stop
Count, but the procedure for the same code in a Fujitsu HDD is the
―number of times the spindle
motor is activated‖.
2. Attribute Description
Attribute Description: Name of detectable item. The manufacturer can increase or decrease the
rates. As an ATA standard there are constant updates, sometimes different models of the same
brand may be quite different, but it is a must to ensure that the major test items are specified by
S.M.A.R.T. (although different manufacturers may have differing names, the essence of the
monitoring is the same.)
1 Read Error Rate
2 Spin up Time
4 Start/Stop Count
5 Relocated Sector Count
7 Seek Error Rate
9 Power-on Hours Count
10 Spin-up Retry Count