[geeks] Solaris resiliency to crashing w/full root partition?
Sandwich Maker
adh at an.bradford.ma.us
Wed Sep 28 16:36:47 CDT 2005
" From: "Michael Horton" <Michael.Horton at acntv.com>
"
" solaris 8, 9, 10 will not crash with a full root partition!
iirc this was first trumpeted for sVr3, and i'm pretty sure i
personally observed at least one non-crash [/dev file oops].
if i'm right, solaris2 would've had this from its beginning.
also as i recall this was attributed to kernel logging routines which
would hang appending to files when they couldn't get more space.
" sun recommends one large root partition and a swap partition!
"
" your sun support provider can provide this information.
"
" solaris 8, 9, 10 reserve enough space so that root can log into a sun
" box and delete files.
"
" this applies to the root partition and may not apply to other partitions
" (such as mounted oracle/san partitions).
iow only for bsd ffs-derived fs, not for raw or other formatted
volumes.
" the freespace variable is also tunable and can be increased to suit your
" site's specific needs.
but it won't stop root-owned daemons from filling /, and i'm pretty
sure i have also experienced at least one root-filled sunos4 crash.
________________________________________________________________________
Andrew Hay the genius nature
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adh at an.bradford.ma.us and think what none thought
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