Vivotek IP Surveillance User Manual download pdf (Page 79)

VIVOTEK - Built with Reliability

User's Manual - 79

Attribute: The various attributes can vary from different HDD manufacturers.

Value: Value for the currently selected attribute.

Worst: Worst value acquired for that attribute.

Threshold: A predened threshold or triggering value. The threshold below which the

normalized value will be considered exceeding specications.

Raw vaule: The detected parameters for that attribute.

Status: The judgement made to deem the current reading as OK or failed.

Verify:

Three types of check disk actions can be initiated through this button.

Bad block check: Performs read/write test to drive sectors to locate bad blocks. This action

may take several hours to complete.

Fast S.M.A.R.T. test: Tests the electronic and mechanical performance and disk read

performance, including those on disk buffer, read head, seek time, and integrity of drive

sectors. The short test is performed on a small section of disk platters, and takes about 2

minutes to complete.

S.M.A.R.T. long test: The long test is more thoroughly and is performed to all drive sectors.

The actual completion time depends on drive sizes and the attributes put to test.

The Check disk functions mentioned above, when performed during active I/Os, can consume

system resources and cause dropped frames with the recording tasks.

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Vivotek IP Surveillance User Manual Page 79