LSM: "fsgen" VS "gen"

From: Mohan Kannapareddy <mkannapa_at_ford.com>
Date: Fri, 14 Aug 1998 12:21:10 -0400 (EDT)

Greetings again,
        This is more of discussion type question. Can anyone
        give me a scoop on the "performance" implication of
        using "fsgen" vs "gen" type when creating a plex.

        The LSM manual was not very clear on discussing this.
        
        Maybe to see where I am coming from, I am trying to
        create a Volume with Four "striped" plex only, NO
        mirroring, we really do not care about the data on
        this particular plex, as you can guess we would like
        to get the maximum performance out of this volume.
        Also the volume WILL be used as a AdvFS file system, so
        as per the suggestion in the LSM volume they recommend
        creating the plex with "fsgen" type. But as per my
        understanding of what was given there seems to be a
        overhead associated with "fsgen" as opposed to using
        "gen", am I wrong with this assumption? Also, does
        the "fsgen" and "gen: come into play only during
        recovery operation, since in my case we are not worried
        about any recovery, does it matter?

        Thanks for any theories
        Mohan
Received on Fri Aug 14 1998 - 16:22:14 NZST

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