From: Matt Harris (mdh@mdh.si.edu)
Date: Mon Sep 23 2002 - 10:05:37 EDT
I've got a bit of a problem with VxFS...
It seems to me from looking at what VxFS likes to have tuned in the
kernel, that VxFS primarily does allocation of inodes and such using the
DNLC (VxFS seems to crap out if the DNLC isn't big enough for absolutely
everything, which is annoying). Is this indeed the case, or am I just
plain wrong? If it is, is there any way to bypass the DNLC for VxFS (or
at least not require it to be insanely huge - UFS doesn't seem to care
about the DNLC size no matter what you do to it), or is there any way to
make it not care if it can lookup stuff in the DNLC (and, if it can't,
to just do it the hard way and look on the disk).
In addition to that, I'm curious as to where VxFS stores inode
information on the disk. Since it does dynamic inode allocation and UFS
does not, does this simply mean that VxFS can grow it's superblock to
meet it's needs, or does it use another mechanism?
TIA, Matt.
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