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SubjectRe: cachefs module for linux?
Christoph Lameter wrote:
>
> Persistent across reboots on a "diskless" machine? What kind of magic is
> that?

The quotes are mine. A "diskless" machine is

NFS cache = cachefs on local disk
swap space = swap on local disk

Everything else is on a remote NFS server for ease of administration.

cachefs is persistent across reboots, and try creating an 10GB NFS cache
for a 0.5-terabyte filesystem without it :)

Jeff



>
> On Tue, 8 Jun 1999, Brandon S. Allbery KF8NH wrote:
>
> > In message <Pine.LNX.4.10.9906080958540.28339-100000@cyrix200.lameter.com>, Chr
> > istoph Lameter writes:
> > +-----
> > | > cachefs comes in really handy, too, setting up "diskless" machines with
> > | > nothing but NFS cache and swap space.
> > |
> > | Just allow NFS to use the standard Linux cache more efficiently via a
> > | mount parameter and all should be well. cachefs is the wrong solution.
> > +--->8
> >
> > Err, no. First, you assume that the Linux cache can be arbitrarily large
> > (or at least that enough memory is available to cache reasonable working
> > sets); second, cachefs is persistent across reboots, which the Linux buffer
> > cache cannot be.
>
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