On Fri, 2006-06-23 at 09:05 +0100, Uday Chitragar wrote:
> In short, file system filter are kernel modules. They intercept every
> request being processed by XFS.
> Good news is, we are in the process of making it open :)
ic. so this is like a kernel module written by your company for XFS and
it intercept and redirect the processing if need. if this work with VFS,
then it is general for all FS or still only for XFS?
making it open source? sounds interesting. please keep us updated on
this.
>
> Regards,
> Uday Chitragar
>
>
> Ming Zhang wrote:
>
> >On Wed, 2006-06-21 at 08:46 +0100, Uday Chitragar wrote:
> >
> >
> >>We are building an Archive Appliance that generates sparse files.
> >>
> >>Data written to filesystem is migrated to optical disks (UDO).
> >>Based on usage policy, the actual files on filesystem are replaced with
> >>sparse files.
> >>On access of the file (from filesystem clients), the filesystem filter
> >>(for XFS) triggers events to restore the actual file from Optical
> >>storage onto the filesystem.
> >>
> >>
> >
> >this trigger sounds interesting. could you describe it a bit more?
> >thanks!
> >
> >
> >
> >
> >
> >
> >>Regards,
> >>Uday Chitragar
> >>
> >>John Groves wrote:
> >>
> >>
> >>
> >>>I am working on a data management subsystem, and would appreciate any
> >>>insight people could share about real world applications that generate
> >>>sparse files. Can anybody share information or pointers to
> >>>applications that generate (and benefit from) sparse files?
> >>>
> >>>Thanks,
> >>>John Groves
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> >
>
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