[Bug 59695] Re: High frequency of load/unload cycles on some hard disks may shorten lifetime

[Endolith]

> BTW they are designed to work
> exclusively at AC, as they would otherwise deactivate the shock
> protection of your laptop's harddrive when running on battery.

Worrying about "protecting" the laptop from dropping seems dubious.

1. I am just as likely to drop the laptop in AC power as in battery power
2. If I'm on battery power, there's no guarantee that when I drop it the head will happen to be parked.
3. Is it true that a hard drive's built-in drop protection is disabled when told not to park the heads?  If it has an actual "drop protection" feature, it seems unlikely that it would ever be disabled.

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High frequency of load/unload cycles on some hard disks may shorten lifetime
https://bugs.launchpad.net/bugs/59695
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