Planning for Disk Encryption
Hi,
It's well known that fail to plan means plan to fail. But when comes to
Disk Encryption, I did not see any reasonably planning on disk failure,
even though I've googled extensively.
My understanding/impression is that with Full Disk Encryption, even a
single bad sector will have a much larger impact than itself and might
ruin the whole disk. That's a rather big risk right there, but I haven't
found article on how to cope with the problem.
To make it more "interesting"/"practical", consider planning for normal
home user. They differ from big corporation in that, big corporation will
throw away disks once SMART *indicates* the disk is failing, while normal
home user will try still to use it until it fails massively, which hardly
happens. What I used to do is to mark the bad sectors in inodes as bad and
not using them any more. Works great, and I found a similar practice on
the net too -- http://www.linuxforum.com/threads/3265-bad-sectors-on-disk,
"I have some bad sectors on my hard drive. What I did was to make a
partition on the part which has the bad sectors. Then I just do not use
that particular partition. It's been two years now. The rest of the hard
drive is still working well, 12-16 hours every day, seven days a week."
So, what would you plan for normal home users on disk failure for Disk
Encryption? How to cope with it?
Thanks
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