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Re: [PATCH 2/2] qapi: implementation of the block-dirty-bitmap-dump comm


From: Vladimir Sementsov-Ogievskiy
Subject: Re: [PATCH 2/2] qapi: implementation of the block-dirty-bitmap-dump command
Date: Mon, 22 Mar 2021 12:02:07 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1

20.03.2021 12:32, Patrik Janoušek wrote:
Currently, dirty bitmaps are for internal use only

As I said, that's not correct: for external use we have bitmap export through 
NBD protocol.

Protocol description is here 
https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md  (you need 
"Metadata querying" section)

And qemu bitmap export through NBD "metadata querying" feature is described 
here: docs/interop/nbd.txt


--
Best regards,
Vladimir



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