On Mon, 16 May 2005, Richard B. Johnson wrote:
> Then I suggest you never use such a drive. Anything that does this,
> will end up replacing a good track with garbage. Unless a disk drive
> has a built-in power source such as super-capacitors or batteries, what
> happens during a power-failure is that all electronics stops and
> the discs start coasting. Eventually the heads will crash onto
> the platter. Older discs had a magnetically released latch which would
> send the heads to an inside landing zone. Nobody bothers anymore.
IBM/Hitachi hard disk drives still use a "load/unload ramp" that
entirely moves the heads off the platters - I've known this since the
DJNA, and it is still advertised in Deskstar 7K500 and Ultrastar 15K147
to name just two examples.
--
Matthias Andree
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]