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PowerScale OneFS 9.3.0.0 CLI Administration Guide

Create an NFS export

You can create NFS exports to share files in OneFS with UNIX-based clients.

Each directory path that you designate for an export must exist. Multiple exports can use a particular directory path, provided those exports do not have any of the same explicit clients.

The NFS service runs in user space and distributes the load across all nodes in the cluster. This enables the service to be highly scalable and support thousands of exports. As a best practice, however, you should avoid creating a separate export for each client on your network. It is more efficient to create fewer exports, and to use access zones and user mapping to control access.

NOTE: The default security flavor (UNIX) relies upon having a trusted network. If you do not completely trust everything on your network, create the NFS export with Kerberos using the isi nfs exports create command option [--security-flavors (unix | krb5 | krb5i | krb5p)]. If the system does not support Kerberos, it will not be fully protected. NFS without Kerberos trusts everything on the network and sends all packets in cleartext. If you cannot use Kerberos, find another way to protect the Internet connection. At a minimum, do the following:
  • Limit root access to the cluster to trusted host IP addresses.
  • Ensure that all new devices that you add to the network are trusted. Methods for ensuring trust include, but are not limited to:
    • Use an IPsec tunnel. This option is secure because it authenticates the devices using secure keys.
    • Configure all switch ports to go inactive if they are physically disconnected. Ensure that the switch ports are MAC limited.
  1. Run the isi nfs exports create command.
    The following command creates an export supporting client access to multiple paths and their subdirectories:
    isi nfs exports create /ifs/data/projects,/ifs/home --all-dirs=yes
  2. Optional: To view the export ID, which is required for modifying or deleting the export, run the isi nfs exports list command.

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