Disk Information - Vivotek NR8401 User Manual

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1. Disk Information:

Model family: The brand name of the HDD manufacturer.
Device model: The disk model name.
Serial number: Serial number assigned to the disk drive.
Firmware version: The version of firmware running on this disk drive.
User capacity: The rated capacity for this disk drive.
Status: The bad block check or S.M.A.R.T. test previously executed on this drive.
2. S.M.A.R.T. test:
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 predefined threshold or triggering value. The threshold below which the
normalized value will be considered exceeding specifications.
Raw vaule: The detected parameters for that attribute.
Status: The judgement made to deem the current reading as OK or failed.
3. Check disk:
Three types of check disk actions is initiated through this button. Select the action you wish to
take and click the OK button.
Bad block check: Performs read/write test to drive sectors to locate bad blocks. This action
may take several hours to complete.
Short 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.
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.
4. Stop check disk:
Stops the bad block check or S.M.A.R.T. test on an individual disk drive. The disk drive
currently running a disk check should have a progress bar shown in the Progress column.
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