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NFS

Module 7

Data ONTAP 8.0 7-Mode

Administration

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2009 NetApp. All rights reserved.

Module Objectives

By the end of this module, you should be able to:

Explain NFS implementation in Data ONTAP

License NFS on a storage system

Explain the purpose and format of/etc/exports

List and define the export specification options

Explain the rules for exports

Describe the use of the exportfs command

Mount an export on a UNIX host

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NFS Overview

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NFS Overview

NFS allows network systems (clients) to share

files and directories that are stored and

administered centrally from a storage system

The following platforms usually support NFS:

Sun Microsystems Solaris

Linux

HP-UX

And more

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vol0 flexvol1

Exported Resources Overview

Storage System

Client1

etc

home

data_files

eng_files

misc_files

Network Connection

Client1

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Setting Up andConfiguring NFS

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7/31 2009 NetApp. All rights reserved.

Setting up NFS

Configure NFS using either:

CLI

NetApp System Manager

When setting up NFS, you must have:

An NFS license code

Determined if you are enabling NFS over TCP,

UDP, or both

Determined which version of NFS to enable

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CLI: NFS Setup

To use the CLI to configure NFS on a storage

system, complete the following steps:

License NFS on the storage system:

license add

Executing this command starts the rpc.mountdand nfsd daemons.

Set NFS options:

options nfs

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System Manager: NFS Setup

Enter the NFS

license code

To configure

licenses

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System Manager: NFS Setup (Cont.)

The newly added

license code

Exports Added

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Exporting Resources

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Exporting Resources

To make resources available to remote clients,

the resource must be exported

To export a resource persistently:

Edit the /etc/exports file with new entry

Execute the exportfs -p command Use NetApp System Manager

To export a resource temporarily, use theexportfs -i -o command

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/vol/vol0/pubs -rw=host1:host2,root=host1/vol/vol1 -rw=host2

/vol/vol0/home

Adding an Export: /etc/exports

Specifies the full path to the

directory that is exported

All hosts can mount the

/vol/vol0/home directory as read-

write if an option is not specified

This option gives read-write

permissions to host2 only. All

other hosts have no access

This option gives host1s root

user has root access

The first option is listed

following a dash. Additional

options are separated bycommas. In this example the -

rw option allows host1 and

host2 to mount the pubs

directory. Host names are

listed separated by colons

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Test Your Knowledge

1. Allow root access to

/vol/vol0 by adminhost

2. Allow read-write access to/vol/vol0/home by

host1 and host2

3. Allow read-write access to/vol/vol1 by host1 and

read-only access by host3

/etc/exports

a. /vol/vol1 -rw=host2

b. /vol/vol0 -rw=adminhost,root=adminhost

c. /vol/vol0/home -rw=host1:host2

d. /vol/vol0 -ro=host2

e. /vol/vol1 -rw=host1,ro=host3

f. /vol/vol1 rw=host1,root=host3

g. /vol/vol0/home rw=host1,ro=host2

h. /vol/vol0 ro=adminhost2,root=adminhost2

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Exporting

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After adding an export to /etc/exports, use

the exportfs -a command to load the

export

system> rdfile /etc/exports

#Auto-generated by setup Mon Apr 30 08:32:21 GMT 2007

/vol/flexvol/qtree -sec=sys,rw=10.254.232.12

/vol/vol0/home -sec=sys,rw,root=10.254.232.12,nosuid

system> exportfs

system> exportfs -a

system> exportfs

/vol/flexvol/qtree -sec=sys,rw=10.254.232.12

/vol/vol0/home -sec=sys,rw,root=10.254.232.12,nosuid

The exportfs Command

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Temporary Exports

Use the exportfs command to create in-

memory exports:

system> exportfs -i -o

Example:

system> exportfs -i -o ro=host1/vol/vol0/home

NOTE: When the storage system reboots,

this export will be gone

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Common exportfs Options

Display all current exports:

system> exportfs

Add exports to the /etc/exports file:

system> exportfs -p [options] path

Reload exports from /etc/exports files:

system> exportfs -r

Unload all exports:

system> exportfs -uav

Unload a specific export:system> exportfs -u [path]

Unload an export and remove it from /etc/exports

system> exportfs -z [path]

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System Manager: Exporting

Current /etc/exports fileTo configure

exports

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System Manager: Exporting (Cont.)

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The newly addedexport

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anon applies

only to root users

anon=0 (root)

anon=65535 (deny access

to root users)

anon=65534

(nobody)

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Mounting

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Mounting From a Client

To mount an export from a client:

1. Establish a Telnet session or log in to the host

2. Create a directory as a mountpoint for the storage system

3. Mount the exported directory in the host directory you just

created

4. Change directories to the mounted export5. Enter ls l to verify that the storage appliance is mounted

and accessible

telnet 10.32.30.20 (1)

#mkdir /system-vol1-qt1 (2)

mount system:/vol/vol1/qtree1 /system-vol1-qt1 (3)

cd /system-vol1-qt1 (4)

#

#

#

ls l (5)

-rwxr-xr-x root 719634 FEB 11 2004 ,general

-rwxr-xr-x root 719634 FEB 13 2004 ,policy

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Other NFS Administration Resources

For more information about NFS administration,

see Data ONTAP NFS Administration This advanced course covers:

Exporting resources across domains, subnets, and

netgroups

Advanced configuration

NFS statistics gathering

NFS performance tuning

NFS troubleshooting

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Module Summary

In this module, you should have learned to:

Explain NFS implementation in Data ONTAP

License NFS on a storage system

Explain the purpose and format of

/etc/exports

List and define the export specification options

Explain the rules for exports

Describe the use of the exportfs command Mount an export on a UNIX host

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Exercise

Module 7: NFS

Estimated Time: 45 minutes

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Check Your Understanding

What does NFS stand for?

Network File System

What is the format for the /etc/exports file?

path -{export_option}

What is the purpose of export options?

To set access rights and host access

What command would you use to view what is

exported from the storage appliance? exportfs

M07-NFS

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