Berkeley CSUA MOTD:Entry 26725
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2025/04/04 [General] UID:1000 Activity:popular
4/4     

2002/12/5-6 [Computer/SW/OS/Solaris] UID:26725 Activity:high
12/5    Any idea if there's a limit to the number of mount points an nfs
        client is allowed to have in either linux (any) or solaris (any)?
        I've got data all over the place and need each client to mount a *lot*
        of servers.  Thanks!
        \- not practically.
        \_ In the old days the max number of mount points was around 256.
           These days its probably a lot larger. If you are worried about
           this, the best solution would be to use automount. This would
                                                   \- i have reasonably large
                                                   automounter maps ... i see
                                                   automounter on solaris
                                                   grow over time to 100meg+
                                                   in size, so i could believe
                                                   there is some problem with
                                                   it that may manifest itself
                                                   with a huge number of
                                                   mounts. --psb
                                                   \_ Yeah, I've seen this
                                                      too, but if OP wants
                                                      to limit the number
                                                      of mount points used
                                                      on ave. then automounter
                                                      is the only real soln.
                The mounts are being hit all the time by various apps so _/
                automount won't really help.  I just need to know if there's
                a real limit and how far away I might be.  I've got 50+ now
                and was going to be maybe be adding another 50+ over the next
                2-3 months and then more after that every so often forever. I
                need to know in advance if I should be telling management they
                can't do what they're wanting to do or not.  Thanks!  --OP
                \_ You may be able to add lots of mount points but at some
                   stage beyond 200 or so you will start to see stability
                   and performance issues (at least with older versions of
                   linux, 2.0 and 2.2 kernels, and Solaris, 2.5, 2.6 and maybe
                   even 7). In the long run your best bet will be to ditch
                   nfs and to use something like afs which was designed to
                   handle your type of problem.
           limit the ave. number of mount points in use at any given time.
           \_ Thanks!
2025/04/04 [General] UID:1000 Activity:popular
4/4     

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