Hitachi 7K500 320GB HTS725032A9A364 ユーザーズマニュアル
製品コード
HTS725032A9A364
7K500 OEM SPECIFICATION
Page 31 of 176
6.3.6.4
6.3.6.4
6.3.6.4
6.3.6.4 Test considerations
Test considerations
Test considerations
Test considerations
Start/stop testing is classically performed to verify head/disk durability. The heads do not land on the disk,
so this type of test should be viewed as a test of the load/unload function.
so this type of test should be viewed as a test of the load/unload function.
Start/Stop testing should be done by commands
through the interface, not by power cycling the drive.
Simple power cycling of the drive invokes the emergency unload mechanism and subjects the HDD to
non-typical mechanical stress.
non-typical mechanical stress.
Power cycling testing may be required to test the boot-up function of the system. In this case HItachi
recommends that the power-off portion of the cycle contain the sequence specified in section 6.4.6.2,
"Required Power-Off Sequence” on page 29. If this is not done, the emergency unload function is
invoked and non-typical stress results.
recommends that the power-off portion of the cycle contain the sequence specified in section 6.4.6.2,
"Required Power-Off Sequence” on page 29. If this is not done, the emergency unload function is
invoked and non-typical stress results.