The long test was designed as the final test in production and is the same as the short test with two differences.

Read/Verify: It will read a certain area of the disk and verify certain data, the size and position of the region that is read is also specific to each manufacturer.

Mechanical Properties: The exact sequence of the servos and the positioning mechanism to be tested is also specific to each manufacturer.

It is conceivable, for example, to test the internal RAM, the read/write circuits or the head electronics.

Electrical Properties: The controller tests its own electronics, and since this is specific to each manufacturer, it cannot be explained exactly what is being tested.

The test checks the disk by dividing it into three different segments. Therefore, a maximum run time for the short test is 2 min. The goal of the short test is the rapid identification of a defective hard drive.

In principle, the background mode is the preferred mode. Therefore, this mode is only recommended when the hard disk is not used. In Foreground Mode all commands will be answered during the test with a 'CHECK CONDITION' status. If the hard drive is busy, the test is paused and then continues at a lower load speed, so there is no interruption of the operation. In Background Mode the priority of the test is low, which means the normal instructions continue to be processed by the hard disk. Each of these tests can be performed in two modes: SMART offers two different tests, according to specification type, for and SCSI devices. The last two lines are the most important as these indicate whether SMART support is available and enabled. SMART support is: Available - device has SMART capability. User Capacity: 500,107,862,016 bytes ĭevice is: In smartctl database ĪTA Standard is: Exact ATA specification draft version not indicated Model Family: Western Digital RE4 Serial ATA

Hard drive dst short test