On 05/03/2012 10:09 PM, Shankar Viswanathan wrote: > Talking about versioning filesystems, why haven't they been popular on > Unix/Linux? I know RSX-11 and VMS implemented versioning filesystems > which were used quite extensively in development environments. I am > aware of VFS implementations for Linux such as ext3cow and NILFS but > haven't actually seen them used anywhere. I have always wondered why > we don't see more uses of this idea. > > I know ClearCase implements a virtual filesystem to create a "view" of > the versioned object, but I don't believe the versioning is handled > natively in the filesystem -- the versioning I think is handled by a > separate database. I have not used ClearCase for years, but we may need to start. ClearCase is essentially a code management system. As a developer I never liked file versioning. under VMS. I felt it left too much clutter. But, it does provide some protection if you inadvertently clobber a file. But, emacs has a similar way to create versions. Normally I use the single backup (eg ~), but you can set it for multiple versions.
-- Jerry Feldman <[email protected]> Boston Linux and Unix PGP key id:3BC1EB90 PGP Key fingerprint: 49E2 C52A FC5A A31F 8D66 C0AF 7CEA 30FC 3BC1 EB90
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