I am fs minifilter developer. I have memory mapped file that i am using on target volume. For CSV volume - I read from the Vladimir Petter (Microsoft) storage conference notes: "Avoid building memory sections. Violation - stale cache and stream corruption." (I think I should also avoid using of file backed memory sections - memory files.) At the same time one of MS guys on Build conference told that memory mapped files on CSV volumes, are supported from 2012 Windows Server. So can I use safely memory mapped files on the CSV volumes or not?
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Other question what is reccomended way to find when node became coordinator (to open file for write from that node), and when node become not coordinator (to close file opened with write access)?
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There is very litle info at msdn about CSV fort fs developers..