Questions and Sanity Check
yocum at linuxcare.com
Thu Mar 1 06:46:11 PST 2001
Daniel Ridge wrote:
> On Tue, 27 Feb 2001, Keith Underwood wrote:
> > I would use larger hard drives. The incremental cost from 10GB to 30GB
> > should be pretty small and you may one day appreciate that space if you
> > use something like PVFS. I would also consider a gigabit uplink to the
> > head node if you are going to use Scyld. It drastically improved our
> > cluster booting time to have a faster link to the head.
> > Keith
Since I haven't built/booted a Scyld cluster yet, and have only seen Don
talk about it at Fermi, please excuse my potentially naive comments.
> For people who are spending a lot of time booting their Scyld slave nodes
> -- I would suggest trimming the library list.
> This is the list of shared libraries which the nodes cache for improved
> runtime migration performance. These libraries are transferred over to
> the nodes at node boot time.
Hm. Wouldn't it be better (i.e., more efficient) to cache these libs on
a small, dedicated partition on the worker node (provided you have a
disk available, of course) and simply check that they're up-to-date each
time you boot and only update them when they change, say, via rsync?
Dan Yocum, Sr. Linux Consultant
Linuxcare, Inc. 630.697.8066 tel
yocum at linuxcare.com, http://www.linuxcare.com
Linuxcare. Putting open source to work.
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