[Lustre-devel] storing SOM epoch in EA

[Ricardo M. Correia <Ricardo.M.Correia@Sun.COM>]

On Ter, 2008-02-19 at 20:41 +0530, Kalpak Shah wrote:

> The epoch will need to be stored in an external block or
> FatZap (depending on implementation of in-dnode EAs) only in-case the
> file is striped across more than 10-15 OSTs.


That may not be true.
For example, with Matthew's proposed design, we could put the epoch as a
system attribute with "higher priority" (lower index) than LOV data,
which means it would always fit in the dnode even if we have lots of
LOVs.

Regards,
Ricardo

--

Ricardo Manuel Correia
Lustre Engineering

Sun Microsystems, Inc.
Portugal
Phone +351.214134023 / x58723
Mobile +351.912590825
Email Ricardo.M.Correia at Sun.COM
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