System Administration Guide: Network Services

ProcedureHow to Use Client-Side Failover

  1. Become superuser or assume an equivalent role.

    Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.

  2. On the NFS client, mount the file system by using the ro option.

    You can mount from the command line, through the automounter, or by adding an entry to /etc/vfstab that resembles the following:

    bee,wasp:/export/share/local  -  /usr/local  nfs  -  no  ro

    This syntax has been allowed by the automounter. However, the failover was not available while file systems were mounted, only when a server was being selected.

    Note –

    Servers that are running different versions of the NFS protocol cannot be mixed by using a command line or in a vfstab entry. Mixing servers that support NFS version 2, version 3, or version 4 protocols can only be performed with autofs. In autofs, the best subset of version 2, version 3, or version 4 servers is used.