Re: HAMMER update 06-Feb-2008

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>]

:Ok, I think I'll need clarification on another 2 things: 1) how easy will it 
:be in production HAMMER  to expand/shrink filesystems: ie. /home is running 
:out of space, so i buy an additional drive and will want /home volume to 
:expand over the driver. Or, I made /var too big initially and i'll want to 
:shrink it to half the size and use the space for /usr.

    That will be easy.  The blockmap makes it easy.  HAMMER will be able to
    move physical big-blocks around on a whim.

:2) Is production HAMMER going to contain support for Extended Attributes?
:
:Petr

    I have not implemented the vnops for it, but there is absolutely nothing
    preventing it.  Since HAMMER uses a record-based storage model,
    the extended attributes would be nothing more then records.

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>