Re: [iPAQ] Low Battery Data Backup

From: Nils Faerber <nils.a.t.kernelconcepts.de>
Date: Mon Sep 18 2000 - 18:04:47 EDT

On Sun, 17 Sep 2000, Cpt_Kirks wrote:
> Since a certain amount (3MB+ ?) of flash will be available to write to, this
> could be used to save valuable data in RAM in case of a low battery.
At the early stages of development you will for sure be able to judge manually
which data is valuable and which is not. But how shall the system do this later
on?

> The power management software under development could write certain
> directories to an area in flash set aside.
Which should that be?

> Hopefully nobody will let their battery die more than 100,000 times. :-)
To protect your flash from brownout (i.e. too many writes) you should also
mount it with the noatime option, like

  mount -o noatime /dev/flash6 /mnt

to reduce the flash writes even further.
I would suspect that noone is interested in last access times on the iPaq ;)

> Tom
CU
  nils faerber

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Received on Mon Sep 18 15:08:42 2000

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