Hitachi hard disk 0J11285 500 GB 2.5 " 8 MB 0J11285 Ficha De Dados
Códigos do produto
0J11285
Z5K500 OEM Specifications
28
6.3.6.4
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 of the hard
disk drive. Simple power cycling of the hard disk drive invokes the emergency unload mechanism and
subjects the HDD to non-typical mechanical stress.
disk drive. Simple power cycling of the hard disk drive invokes the emergency unload mechanism and
subjects the HDD to non-typical mechanical stress.
Power cycling testing may be required to test the boot-up function of the system. In this case HGST
recommends that the power-off portion of the cycle contain the sequence specified in section 6.3.6.2,
"Required Power-Off Sequence”. If this is not done, the emergency unload function is invoked and
non-typical stress results are made.
recommends that the power-off portion of the cycle contain the sequence specified in section 6.3.6.2,
"Required Power-Off Sequence”. If this is not done, the emergency unload function is invoked and
non-typical stress results are made.