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NFS Problem: Port mapper failure

  • 1.  NFS Problem: Port mapper failure

    Posted Mon November 26, 2012 05:29 AM

    Originally posted by: Yusata


    Hi guys,
    I have 3 pSeries machines as below:

    A
    IP: 172.31.199.15
    AIX: 6.1

    B
    IP: 172.31.199.12
    AIX: 5.3

    C
    IP: 172.31.198.15
    AIX: 6.1

    A & B are NFS Server, C mounts the file system from those servers.
    File /etc/hosts is similar each other:
    
# File /etc/hosts # Production site 172.31.199.15   A 172.31.199.12   B   # DR site 172.31.198.15   C


    The problem is C successfully mount NFS on B, but not on A.
    it gets the the following error when C mount NFS on A.
    
mount: 1831-010 server A not responding: RPC: 1832-018 Port mapper failure - RPC: 1832-008 Timed out mount: backgrounding ITC08:/backupdb


    When I try mount NFS on A from B, it works.

    I asked my network guy he said he has opened any port on those servers.

    Here is the result when I execute rpcinfo from server A:
    
#rpcinfo -p A program vers proto   port  service 100000    4   udp    111  portmapper 100000    3   udp    111  portmapper 100000    2   udp    111  portmapper 100000 4   tcp    111  portmapper 100000    3   tcp    111  portmapper 100000    2   tcp    111  portmapper 100003    2   udp   2049  nfs 100003    3   udp   2049  nfs 100003    2   tcp   2049  nfs 100003    3   tcp   2049  nfs 100003    4   tcp   2049  nfs 200006    1   udp   2049 200006    4   udp   2049 200006    1   tcp   2049 200006    4   tcp   2049 100005    1   tcp  32776  mountd 100005    2   tcp  32776  mountd 100005    3   tcp  32776  mountd 100005    1   udp   9022  mountd 100005    2   udp   9022  mountd 100005    3   udp   9022  mountd 400005    1   udp   9023 100024    1   tcp  32777  status 100024    1   udp   9031  status 100133    1   tcp  32777 100133    1   udp   9038 200001    1   tcp  32777 200001    1   udp   9045 200001    2   tcp  32777 200001    2   udp   9052 100021    1   udp   9055  nlockmgr 100021    2   udp   9055  nlockmgr 100021    3   udp   9055  nlockmgr 100021    4   udp   9055  nlockmgr 100021    1   tcp  32778  nlockmgr 100021    2   tcp  32778  nlockmgr 100021    3   tcp  32778  nlockmgr 100021    4   tcp  32778  nlockmgr 100068    2   udp   9070  cmsd 100068    3   udp   9070  cmsd 100068    4   udp   9070  cmsd 100068    5   udp   9070  cmsd 100083    1   tcp  32781  ttdbserver


    C can telnet to A on port 2049 and 111, vice-versa.

    Does anybody here have the same problem ?
    Need your advice please.

    Thank you,
    Yusata.
    #AIX-Forum


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