[Beowulf] Big storage

Leif Nixon nixon at nsc.liu.se
Thu Sep 6 07:11:36 EDT 2007


Loic Tortay <tortay at cc.in2p3.fr> writes:

> We had an issue with the (incredibly) long dCache startup time due to
> some strange problem in Java/ZFS metadata interaction.
>
> Our solution was indeed to move the dCache metadata to a UFS filesystem
> on the mirrored system disks.

That discovery is why my new pool machines have dual 15k SAS system disks...

> This issue and probably a few others were mentionned during the
> X4500/ZFS related presentations during last HEPiX meeting in Hamburg.
> I remember seing you there (or someone wearing a badge with your name
> on it :-).

Heh. Right. 8^) Yes, I heard the presentations and have dug up a
couple more sets of slides, but I'm always interested in any new
details. 

-- 
Leif Nixon                       -            Systems expert
------------------------------------------------------------
National Supercomputer Centre    -      Linkoping University
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