Doubt HDD shocks

[cloudff7]

I have 2.5" HDDs from Seagate, WD, HGST brands, they are inside USB 3.0 cases from Kesu Chinese and Orico brands) I ejected these HDDs in Windows 10 then I pulled the USB 3.0 cable from the PC and my hand hit and shocked the HDD case and moved the case to the left of the table. Does this type of blow damage the HDD and generate bad sectors?

 

[Jared]

It's certainly possible, but I wouldn't immediately assume the HDD is bad just because you bumped it. Once the power (or USB cable) is disconnected, the heads park very quickly into their parking zone. Once the heads are parked, they're pretty resilient to being bumped around. It's when they're actively running that it's dangerous to move or bump HDDs.

 

[cloudff7]

In my case, I use a 2.5" HDD + USB3.0 enclosure case. I ejected it (safely removed hardware) in Windows and the HDD disappeared from Windows, but I didn't disconnect the USB3.0 cable from the PC/case.

I don't know if it goes into parked mode or not in this situation, and how many seconds after ejection it goes into parked mode because my 2.5" HDDs are old, from 2013 models WD10JPVX-08JC3T5 and HGST HTS541010A99E662

 

[Jared]

In my case, I use a 2.5" HDD + USB3.0 enclosure case. I ejected it (safely removed hardware) in Windows and the HDD disappeared from Windows, but I didn't disconnect the USB3.0 cable from the PC/case.

I don't know if it goes into parked mode or not in this situation, and how many seconds after ejection it goes into parked mode because my 2.5" HDDs are old, from 2013 models WD10JPVX-08JC3T5 and HGST HTS541010A99E662

The OS eject just makes certain there's no cached data that hasn't been yet written to the disk and that the file system is fully updated and ready for disconnect. It has nothing to do with the hard drive's operations like parking the heads. It's highly unlikely then that the heads were parked. But, if the drive is otherwise working fine, just keep an eye on the S.M.A.R.T. for pending or re-allocated sectors to know if it's having an issue.

In any event, never trust a single drive for any data you can't afford to lose forever. Always have a backup on another device somewhere.

 

[cloudff7]

after ejecting (safely removing hardware) in windows my usb3.0 case + 2.5" hdd i pulled the usb3.0 cable from the pc at that moment the usb connector came out and my hand hit the hdd case and it moved in the table but did not fall on the floor did this shock cause the reading/writing heads to rub against the plattes?

 

[Jared]

Not too likely. Within only a few milliseconds of the USB cable coming out, the drive already parked the heads. Likely it already happened before your hand hit it. But, check the S.M.A.R.T. either way and see.

 

[cloudff7]

My hand was a few centimeters away from the 2.5" HDD case. I don't know if there was enough time to park the 2.5" HDD heads in a safe place before my hand hit the case when I pulled the USB3.0 connector from the PC. I don't know if the USB3.0 enclosure case causes a delay for the 2.5" HDD to park.

SMART, I don't know if it would be useful to show any error or data corruption caused by the impact. I wonder if a full scan surface would be necessary, plus many hours of testing and heating the drive.

My 2013 model HDDs are HGST HTS541010A99E662 and Western Digital WD10JPVX-08JC3T5.

 

[Jared]

My hand was a few centimeters away from the 2.5" HDD case. I don't know if there was enough time to park the 2.5" HDD heads in a safe place before my hand hit the case when I pulled the USB3.0 connector from the PC. I don't know if the USB3.0 enclosure case causes a delay for the 2.5" HDD to park.

SMART, I don't know if it would be useful to show any error or data corruption caused by the impact. I wonder if a full scan surface would be necessary, plus many hours of testing and heating the drive.

My 2013 model HDDs are HGST HTS541010A99E662 and Western Digital WD10JPVX-08JC3T5.

Just make a backup of the drive. If it's got bad sectors in existing files, the drive will find them when it tries to read them. Other bad sectors will eventually be detected when the drive background scans itself or when it tries to write data to a sector and it fails.

 

[cloudff7]

Is it myth or truth that a 2.5 hdd is always not reading/writing the heads are in parked

 

[cloudff7]

Is it true or false that 2.5" HDDs, whether inside a USB3.0 case or inside the PC, only park the heads in a safe place when the power supply and cable are removed? what seconds for parked heads?