Fat Soft Update

Table Of Contents:

Description
Soft Update is techinque to resolve meta data consisitency with async write-back I/O manner. This techinque is introduce BSD for FFS.

Rationale
This feature is expected to achive both robustness and peformance.

Projects

 * Sony put summay of design of Soft Update introduced to FAT file system as [[Media:20060411-fat-softupdate.pdf]]
 * discussion on LKML
 * http://groups.google.co.jp/group/linux.kernel/browse_thread/thread/f2a85341a4252f04/956c5586e3e6d5ab?lnk=st&q=fat+softupdate&rnum=2&hl=ja#956c5586e3e6d5ab

Patch

 * not available yet

Utility programs

 * on-line-fsck would be needed.

How To Use

 * This feature could be turn off/on with mount option.

How to validate
[put references to test plans, scripts, methods, etc. here]

Status

 * Status: Just basic design

Future Work/Action Items
Here is a list of things that could be worked on for this feature:
 * not yet listed