[dm-devel] Re: How to handle >16TB devices on 32 bit hosts ??

[Andi Kleen]

> We don't have to rewrite fsck; most of the framework for supporting an
> run-length-conding for compressed bitmaps is already in patches that
> add > 32-bit block numbers to e2fsprogs; we've just been more focused
> on getting 64-bit block numbers support merged than implementing
> compressed bitmaps, but it's only one file that would need to be
> added, and we might be able to steal the compressed bitmap support
> from xfsprogs --- which does this already.

There are regular reports of xfs_repair failing on 32bit,
even on volumes far smaller than 16TB.
 
-Andi
-- 
ak at linux.intel.com -- Speaking for myself only.