[svlug] Software Raid 1 vs straight ext3 partition
msalists at gmx.net
Tue Jan 9 17:05:29 PST 2007
Shifting the focus a little - assuming we would just go change the type from fd to 83, take the snapshot, get everything except for
the md metadata at the end. Would there be a way to recreate the metadata? Or would that involve having to resync the two raid
partitions. If so, the last time I did that it took over 1 full day - in the background of the running system, but still. The box
was pretty slow. So at that point I might be better of just using dd...
> -----Original Message-----
> From: svlug-bounces+msalists=gmx.net at lists.svlug.org
> [mailto:svlug-bounces+msalists=gmx.net at lists.svlug.org] On
> Behalf Of Mark
> Sent: Tuesday, January 09, 2007 4:59 PM
> To: hso at nosneros.net
> Cc: svlug at lists.svlug.org
> Subject: Re: [svlug] Software Raid 1 vs straight ext3 partition
> > > And since partimage knows how to differenciate between
> > ext3 data and unused ext3 space, would it see the metadata as
> > file or as
> > > "unused space"?
> > I don't know if partimage supports md component partitions.
> > md component partitions that use ext* won't look the same as an ext3
> > partition.
> They don't support software-raid nor LVM filesystems. I guess
> the superblock is probably why - there would need to be additional
> logic to handle that. Probably not much logic, but it seems
> like partimage is completely dead as far as support/development is
> concerned... Although it seems to be the only comparable tool
> out there.
> The question is if it would somehow be possible to load the
> md driver/daemon and make the md partitions look like regular ext3 HD
> partitions. But I am not sure if there is a way to get that
> done in a way that it would be transparrent to partimage...
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