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Date:	Mon, 17 Dec 2007 18:03:38 +0300
From:	Evgeniy Polyakov <>
To:	lkml <>
Subject: [0/4] DST: Distributed storage.

Distributed storage.

I'm pleased to announce the 12'th release of the distributed
storage subsystem (DST).

DST allows to form a storage on top of local and remote nodes
and combine them into linear or mirroring setup, which in
turn can be exported to remote nodes.

Short changelog:
 * new improved mirroring algorithm.
	This algorithm uses sliding window approach for full resync
	and write log for partial resync.
 * fixed number of typos and debug cleanups
 * update inode size when linear algorithm changes the size of the
	storage in run time
 * extended number of sysfs files and documentation for them
 * fixed leak in local export node setup
 * name is 'Dancing with the smoked neutrino' now

Overall list of features of the DST can be found on project's homepage:

DST is also exported as a git tree available for clone and pull from

Interested reader can test DST with 2.6.23 tree too
(it should compile fine, but was not tested).

DST passed all FS tests in LTP with XFS (modulo MAX_LOCK_DEPTH too low bug:
[ 8398.605691] BUG: MAX_LOCK_DEPTH too low!
[ 8398.609641] turning off the locking correctness validator.

this is not DST problem though), but it was not performed with
offline/online nodes.

Thank you.

Signed-off-by: Evgeniy Polyakov <>

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