Mailinglist Archive: opensuse (1188 mails)

[Greg Freemyer <greg.freemyer@xxxxxxxxx>]

jdd <jdd@xxxxxxxxx> wrote:

> Le 24/01/2012 10:54, Hans Witvliet a écrit :
>
> > And as, with sdd's, the number of write-actions on any block is
> limited,
> > reducing the number of writing to the same block, will have positive
> > influence on the lifespan of your sdd.
>
> is not the ssd subsystem supposed to do this in the more effective way?

Btrfs doesn't do this because of ssd support.  It does it so that old versions 
of files can be recovered easily.  And recovered is the wrong term.  It 
formally maintains and makes available those older versions.

Ntfs has done this since windows 2003 came out.  MS calls the old versions 
shadow copies.  Btrfs calls them snapshots I believe.

Yast has a "snapper" module in os 12.1 to manage the snapshots.

Greg


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