Exporting NFS File Systems to UNIX/ESXi

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Exporting NFS File Systems to UNIX/ESXi

Upon completion of this module, you should be able to:• Export a file system to UNIX • Describe exporting file systems to ESXi

Exporting NFS File Systems to UNIX/ESXi 1



This lesson covers the following topics:• NFS Client mounts• NFS user authentication

Lesson 1: Exporting a Mounted File System to UNIX



NFS Export• Network File System (NFS) protocol

Client or server distributed file service Provides file sharing in network environments

• VNX Data Mover or VDM is configured as an NFS server Provides file system access for clients of NFS versions 2, 3 and 4


Data Mover

NFS Server

DataFile System

NFS Export

LAN

Unix Client

ESXi server and VMs

VMware vSphere

Linux Client


Access Control• Client access to NFS Exports defined by

Hostname Netgroup Subnet IP address

• Authentication methods Unix Security or AUTH_SYS security Secure NFS Authentication Daemon

• All versions support UNIX security / PC authentication daemon Only versions 3 and 4 support Secure NFS by using either

UNIX/Linux or Windows Kerberos KDC



Mounting a File System to a Mountpoint• Storage > Storage Configuration

File Systems tab, right-click file system > Mounts > Create Mount Mounts tab > Create

• By default a file system is mounted when it is created



Mounting a File System to a Mountpoint: Configuration



Creating an NFS Export of a File System• Storage

Storage Configuration > File Systems Right-click file system > NFS Exports > Create NFS Export

Shared Folders > NFS > Create



Creating an NFS Export of a File System: Configuration• Select the File System to export, define the path and access level



Mounting the File System from Clients (NFS)• NFS mount from client

Manual Automatic (automounter)

• Typical Procedure Create or use an empty local directory as a mount point for the

exported file system NFS mount the local directory to the exported File System

mount <NFS server IP address or FQDN>:/<exported fs> /<mount point>

Example # mount 192.168.1.106:/fs1 /studentX

• View the file systems mounted on the client mount df –h



Permissions on the Created Directory• chmod command is used to

set up permissions

• chmod 775 directory rwx - owner rwx - group r-x - others


Letter Permission Valuer Read 4w Write 2x Execute 1

Letter Permission Value--- No permissions 0r-- Read only 4rw- Read and Write 6rwx Read, write, and

execute7

r-x Read and execute 5--x Execute only 1


• Root of file system contains .etc and lost&found directories• Network users are unaware of the purpose of these directories• Best practice

Mount the file system at subdirectory level, export at that level and hide .etc and lost&found

Export a File System Directory


[root@linux-1 fs1]# ls –aldrwxr-xr-x 5 root root 1024 Apr 6 09:05 .drwxr-xr-x 28 root root 4096 Apr 6 10:14 ..dr-xr-xr-x 2 root bin 80 Apr 6 09:05 .etcdrwxr-xr-x 2 root root 8192 Apr 6 09:05 lost+found[root@linux-1 fs1]#


Click icon to add picture• Shared Folders > NFS Create an NFS export Select NFS Export and click

Properties

• Export file system with root permissions to client Root Hosts option

Create an Administrative Export to File System Root


Create an NFS export to the file system top-level and assign root permissions to an administrative

client


Creating a Directory Below the Exported File System• Create a directory below the exported file system• Set permissions for the newly created directory


[root@linux-1 fs1]# ls -ltotal 8

drwxr-xr-x 5 root root 1024 Apr 6 09:05 .

drwxr-xr-x 28 root root 4096 Apr 6 10:14 ..

dr-xr-xr-x 2 root bin 80 Apr 6 09:05 .etc

drwxrwxr-x 2 epallis engprop 80 Apr 6 10:35 engineering

drwxr-xr-x 2 root root 8192 Apr 6 09:05 lost+found

[root@linux-1 /]# mount 192.168.65.6:/fs01 /fs1[root@linux-1 /]# cd /fs1[root@linux-1 fs1]# mkdir engineering[root@linux-1 fs1]# chmod 775 engineering[root@linux-1 fs1]# chown -R epallis engineering[root@linux-1 fs1]# chgrp -R engprop engineering

Mount export and create subdirectory

with desired permissions for export


Export the Subdirectory of File System• Create an export to the subdirectory of the file system • Grant the proper access rights to the NFS client


Export subdirectory of file system to user community hosts


Mount the File System Sub-directory on NFS Client


[root@linux-1 ~]# cd /engdir[root@linux-1 engdir]# ls -ltotal 8

drwxrwxr-x 2 epallis engprop 80 Sep 18 08:06 .

drwxr-xr-x 29 root root 4096 Sep 18 09:03 ..

[root@linux-1 ~]# mkdir /engdir[root@linux-1 ~]# mount 192.168.65.6:/fs01/engineering /engdir

Mount the subdirectory export on user community host and access the export


Define NIS Using Unisphere• Settings > Network > Settings for File > Wizards > Edit DM DNS/NIS



Unexporting File Systems for NFS• Storage > Shared Folders > NFS

Right click the NFS export and select Delete Or select the NFS Export from the list and click the Delete button Confirm the operation on the dialog box




During this lesson the following topics were covered:• NFS client mounts• NFS user authentication

Lesson 1: Summary




This lesson covers the following topics:• VNX and ESXi interoperability • Provision Storage for an NFS Share on a VNX Storage System

Lesson 2: Exporting File Systems to ESXi



NFS and ESXi Interoperability• Network File System (NFS)

File-sharing protocol for NAS devices

• Simultaneous NFS volume access by multiple ESX and ESXi hosts

• Only NFS version 3 is supported over TCP/IP

• vSphere NFS storage provisioning Datastore manually provisioned

from exported VNX NFS exports VNX NFS export created with

Virtual Storage Integrator plug-in



• Storage administration from the VMware vSphere client VNX and VNXe storage Built-in VAAI primitives

• Installed on VMware vSphere vCenter Server Software downloaded from

EMC Online Support Enabled feature displayed

in vSphere Client interface

EMC VSI: Unified Storage Management (USM) Plug-in



EMC VSI USM: Add Storage• Home > Solutions and Applications > EMC



EMC VSI USM: Provisioning Storage


• Right-click Object > EMC > Unified Storage > Provision Storage


USM: Provision Storage Wizard1. Select Storage Type2. Choose Storage System3. Datastore Name4. Data Mover Details5. Export Type


1

2

3

4

5


Provision Storage Wizard: Creating a New NFS



View: NFS Datastore on ESXi Host• To see the newly provisioned storage on the vCenter server

Click Summary tab > Resources or Configuration tab > Datastores


Resources page on Summary tab

Datastores pageon Configuration tab


View: Provisioned Storage on the VNX Storage System• Unisphere connected to VNX

Properties of new file system that was NFS exported



View: ESXi and VMs on the VNX storage system• Hosts > Virtualization

Right-click existing ESXi or select Add vCenter server




During this lesson the following topics were covered:• VNX and ESXi interoperability • Provisioning Storage for an NFS Share on a VNX Storage

System

Lesson 2: Summary



SummaryKey points covered in this module:• VNX supports file system access for clients running versions 2, 3,

and 4 of the NFS protocol. • A VNX file system and NFS export can be created with the use of

the EMC Virtual Storage Integrator (VSI) plug-in for VMware vSphere.


Exporting NFS File Systems to UNIX/ESXi

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