Ogden, Aaron A. wrote:

Ouch.  As you may know, the limit is *much* lower in linux.  Something
that I've been struggling with recently...

Under normal circumstances I would not be concerned with 'limitations'
of a few hundred active NFS mounts, but such limitations certainly limit
scalability for the extreme cases.



The maximum number of plain pseudo-block device filesystems on a given filesystem is limitted to 256. (This includes proc, autofs, nfs..).


This is because pseudo-block filesystems all use major 0, and each have a different minor (thus the 256 limit).

There are however patches floating around (look at SuSe's kernels, I'm not sure about RH) that allow n majors to be used (default 5). This gives you 1280 mounts, a big step up :)

Mike Waychison


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