Hi Justin.
Yes, definitely Solaris 2.x
I was working mainly with 2.4-2.6 (previously with SunOS also), but it
is in the 2.x Network admin course material, I just checked it. I took
that course in 2000.
I'm sure I've only used that feature once tho as I said , after upping
the capacity of an EMC array for NEC (watching the snow fall on the car
park overnight while restoring from tape backup).
And you're right, it is no longer relevant on modern Solaris systems,
just thought something similar might be available in Linux instead of a
rebuild.
Performance may have been an issues some years ago, but not now.
Similarly reducing minfree is a good idea these days as filesystems are
so large and systems are so quick. you wouldn't 'tunefs -m5 /....' on
an 8gb root drive, but you would on an 800gb filesystem.
Cheers,
Phil Lane.
On 09/05/2013 18:03, Justin Stringfellow wrote:
Tuning the maxusers as a means of increasing the available inodes was
taught by Sun in their 2.x Network Admin course and was included in the
NFS Server Performance and Tuning guide. So as a recommended method, I
regard it as having been safe, useful and effective.
Tuning maxusers is a very old fashioned approach to system tuning; are
you sure you weren't told to do this in relation to SunOS4.x, which
was the earlier Sun UNIX OS, and a BSD derivative? I believe you
absolutely do tune maxusers there, but not Solaris 2.x. Typically you
would tune more specifically - e.g. ncsize for the DNLC, nrnodes for
NFS inode count, etc. Turning the wick up on maxusers will change
sizing for the whole system and could easily result in negative
performance gains.
cheers
--justin
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P.Lane
CEO Lectrics Ltd
Poole
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