New isw data offset?

Dan Williams dan.j.williams at
Wed May 13 05:43:52 UTC 2009

On Tue, May 5, 2009 at 5:45 AM, Luke Yelavich
<luke.yelavich at> wrote:
> I have recently received a bug report about a possible new ISW offset for disk metadata. The reporter attached a patch that he is using to use dmraid temporarily. Yes its hard coded, but it works for him atm, and it has the location of the metadata in it.
> He is using a pair of 1TB drives in RAID level 1. The offset is in exactly the same location on both drives, so I am not 100% sure its a host protected area issue, but this hasn't been confirmed either way yet.
> Attached is the patch, and the metadata dump.

Has the user tried disabling ignore_hpa?  Because the metadata should
always be at a constant offset.


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