plastic ABS doubt shocks protection Hard disk

[jonas778]

ABS plastic case provides some kind of protection against accidental hand shocks and tabletop case for 2.5" HDD hard drives? I know that HDDs have a mechanical needle and arm, some types of knocks or shocks scratch the magnetic disk

[MigL]

Not really, but portable external HDs would probably benefit.
Any time I put HDs in external enclosures I usually slip some foam in there, because I tend to be rough with them.

I don't recall exactly, but an HD, with heads parked, should survive 50G.
If spinning, and heads travelling over the platters, even small bumps could cause the heads to crash.

[jonas778]

In my case, I ejected the external HDD (2.5" HDD + plastic USB 3.0 enclosure case) in Windows 10, then I pulled the USB 3.0 cable from the PC, the cable came out and my hand hit the case with a shock and the case moved to the left of the table.

[MigL]

In the old days we used to click on  'disconnect USB device' to allow the HD to park the heads, before disconnecting.
I don't think I've done that in the last 20 years.

Is your drive not working ? Doesn't seem like you bumped it too hard.
If it makes weird noises when you plug it in, you may have crashed it.
If it sounds normal, but doesn't show up, try going into disk management to re-enable/re-partition/re-format.
Or you can, try opening it and checking any internal connections that may have come loose.
 

[Mordred]

It's likely alright the read/ write heads have some protection to prevent the heads from damaging the disks 

[jonas778]

ABS plastic not help HDD 2.5" of shocks?

[Sensei]

On 10/15/2024 at 11:06 PM, MigL said:

In the old days we used to click on  'disconnect USB device' to allow the HD to park the heads, before disconnecting.
I don't think I've done that in the last 20 years.

This must be done ALWAYS, regardless of the date! It is not about parking heads, but about flushing the cache from memory to device. Without this, the file system can be corrupted and data lost.

 

 

For the same reason, click "Start > Turn off computer" instead of simply pressing the power button.

Edited Sunday at 02:38 PM by Sensei

[studiot]

Just now, Sensei said:

This must be done ALWAYS, regardless of the date! It is not about parking heads, but about flushing the cache from memory to device. Without this, the file system can be corrupted and data lost.

 

 

For the same reason, click "Start > Turn off computer" instead of simply pressing the power button.

 

The usb interface was designed to be safe for hot disconnection/connection with the original devices it was designed for such as cameras, printers, scanners.. which have safe reset on powerdown/up.
It was not designed for hard drives.

So hot connection/disconnection capability depends upon the connected device.

And as you say hard drives should be 'ejected' properly.

+1

[Sensei]

16 minutes ago, studiot said:

The usb interface was designed to be safe for hot disconnection/connection with the original devices it was designed for such as cameras, printers, scanners.. which have safe reset on powerdown/up.
It was not designed for hard drives.

Hot plugging/hot swapping https://en.wikipedia.org/wiki/Hot_swapping means you can plug or unplug a device without turning off the computer (older non-USB connectors require this, e.g. you can't plug in VGA/PS2 keyboard/PS2 mouse when the computer is on, HDMI/DisplayPort/DVI you can).

16 minutes ago, studiot said:

And as you say hard drives should be 'ejected' properly.

Same goes for SSD/NVMe/pendrive/camera/smartphone..

 

Edited Sunday at 03:35 PM by Sensei