Messages in this thread | | | Subject | Re: [lkcd-general] Re: What's left over. | From | Alan Cox <> | Date | 04 Nov 2002 13:08:03 +0000 |
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On Mon, 2002-11-04 at 03:03, Peter Chubb wrote: > >>>>> "linux" == linux <linux@horizon.com> writes: > > > linux> While a crash dump to just half of one of those mirrors is > linux> fine, finding it might be a little bit tricky. And the fact > linux> that the kernel reassembles the mirrors automatically on boot > linux> might make retrieving the data a little bit tricky, too. > > What most other unices do is crash dump to a dedicated swap > partition. LKCD appears to be able to do this. So the setup of MD > etc., isn't going to affect anything.
I have raid1 swap. That does make a difference to the problem space. When we get into encrypted raid5 swap over nbd (the security paranoia dept - store all my swap crypted split into 4 disks in four jurisdictions...) it gets really fun.
For the normal cases it doesn't seem a problem, even for raid0 swap since before crash time you can generate a list of device/blocknumber values and store it in the signed area
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