My questions were:
1. Is there a major performace difference between NFS V2 and NFS V3?
2. Is there a patch for AMD to handle NFS V3?
Answers:
1. V3 is a *lot* faster and more relyable than V2.
So use V3 if you can.
2. a) David Warren (warren_at_atmos.washington.edu) told me, that there
is code to handle nfs3 in amd. He didn't have many chances to try it,
but he thinks it's possible.
I haven't verified this yet, but I'll give it a try and I'll
post the solution if I succeed.
b) Rudi Gabler (RUG_at_USM.Uni-Muenchen.DE) has a work around, which is
working fine:
This is how his amd.master.map looks like:
#
# there comes the data disks on our cluster
#
/defaults type:=program;mount:="/sbin/mount mount -o nfsv3,nogrpid
${rhost}:/e/${key} /i/${key}";unmount:="/sbin/umount umount
${rhost}:/e/${key}";opts:=rq,quota;fs:=/i/${key}
data1 host!=hal1;rhost:=hal1; \
host==hal1;type:=link;fs:=/e/${key}
data1b host!=hal1;rhost:=hal1; \
host==hal1;type:=link;fs:=/e/${key}
data2 host!=hal2;rhost:=hal2; \
host==hal2;type:=link;fs:=/e/${key}
Rudi's workaround is to use the 'type' 'program' and whenever
a filesystem gets mounted, '/sbin/mount' mounts this filesystem with
the option 'nfsv3'.
Thanks to Rudi, David and Martyn for their replies!
Marc
--
Marc Heinzmann http://www.informatik.tu-muenchen.de/~heinzman/
Received on Thu Jul 18 1996 - 15:48:36 NZST