Brian, we did not manage to solve this problem. In the end, we just switched off the CentOS machine and started to only use the Solaris client. I would be really interested in a solution myself, as at the moment we have a SunFire x4200 we cannot make any use of. My main responsibility is not with server admin but research, so I was not able to invest too much time.
On our server, we use one ZFS pool for the home directories with a separate filesystem for each user. Once setup, this has proven to work well (at least in a Solaris only environment). We had to tweak a kernel variable to get it to a usable speed, but maybe that is not needed anymore. Keep in mind that we only have a small number (<16) of users that mainly do computationally intensive operations and no heavy I/O. Hope that helps Stephan On 8/21/07, Brandorr <brandorr at opensolaris.org> wrote: > > On 6/20/07, Stephan Herhut <s.a.herhut at herts.ac.uk> wrote: > > Hello, > > > > we are running a Solaris 10 NFS server with two clients, one being > Solaris > > 10 and the other one being a CentOS 4.3 machine. Both are SunFire x4200 > > machines and the fileserver is a SunFire 260R. The Solaris/Solaris combo > > works fine. Just Solaris/Linux gives us headaches. After a day of use > with > > multiple users (6 concurrent Users using SunRays), the machine starts to > > slow down, especially on file operations. A ls or starting bash takes > about > > 6s in that state. At the same time, the Solaris machine still works > fine. To > > recover from that situation, we need to reboot the Linux machine. > > > > We use nfs3/tcp on linux and nfs4/tcp on solaris clients. All machines > are > > located in the same rack, connected with GB ethernet over a cisco > switch. > > > > Is this a known problem? A misconfiguration? Any hints? > > > > Thanks > > Stephan > > -- > > Stephan Herhut > > Centre for Computer Science and Informatics Research > > University of Hertfordshire > > _______________________________________________ > > nfs-discuss mailing list > > nfs-discuss at opensolaris.org > > > > Stephan, > > Did you ever figure out what is going on? (I need to know if there are > any interoperability issues between Linux clients and OpenSolaris > servers). Also what is the underlying file system, as I plan to use > ZFS? > > Thanks, > Brian > > -- > - Brian Gupta > > http://opensolaris.org/os/project/nycosug/ > -- Stephan Herhut Centre for Computer Science and Informatics Research University of Hertfordshire
