On Mon, 04 Aug 2014 10:20:35 +0530, Sankar P said: > Now, I would like to add a few settings to my filesystem (such as the > number of blocks that should be allocated in an extent by default, > maximum fragmentation score after which defrag should be automatically > handled etc.) I would like to have the ability to not just set these > settings, but export them to a file and restore these settings later. See the source code for tune2fs, which sets the parameters for extN file systems. The most noteworthy point is that the settings are saved *on the filesystem*, so that it can be mounted and handled correctly from the start, without waiting for further configuration (consider - what happens if the "default number of blocks per extent" is 8, and you try to read the first 9 blocks of an extent written when the setting was a non-default 16, before you've configured the setting)
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