Configure Storage System for NFS Redhat Linux (UNIX)

CONFIGURE STORAGE SYSTEM FOR NFS REDHAT LINUX (UNIX)

1. Execute the Setup command.

    > setup


2. If need create the aggregate and volume or use existing volume.

3. Record the IP address and host name for each entry in the /etc/hosts and check

    > ping xxx.xxx.xxx.xxx
    > ping Server Name

4. NFS will automatic export when volume created, to avoid

    > options nfs.export.auto-update off

5. Check whether NFS is license if not, add license using

    > license add xxxxxxx

5. Check the qtree security is in UNIX, if not

    > qtree security  ( volume path | qtree path ) UNIX

6. export the volume or qtree using exportfs command

   Syntax: exportfs -io rw,root="Host IP addrress"  volume path

   > exportfs -io rw,root=10.10.10.10   /vol/vol1    = This entry in memory not in /etc/exports

   > exportfs 

   > exportfs -p  rw,root=10.10.10.10  /vol/vol1     = This command make the entry in /etc/exports

   > rdfile /etc/exports

   > exportfs -v /vol/vol1                                         = This command will export particular volume in   
                                                                                         /etc/exports file.




7. To check the exported volume or qtree

   > exportfs -c 10.10.10.10 /vol/vol1                     = This command will check the access

   > exportfs                                                            = This command show list from nfs memory

8. Create on directory in server

   > mkdir /mount


   Syntax:  mount filler ip address: volume or qtree path /mount point

   > mount 10.10.10.11:/vol/vol1 /mount                = vol1 is mount in the /mount directory in the server  

   > cd /mount                                                          = Get in to mount directory  

   > mkdir test_folder                                             = make directory in the mounted directory

9. Permanent mounting in server side for consistency reboot

   > service nfs restart

   > chkconfig nfs on ( consistency reboot )


   > cat  /etc/fstab (depends on UNIX Server (OS))

   Syntax for FSTAB: (linux) and entry depends on UNIX Server (OS)

     <file system>                 <dir>        <type>    <options>    <dump>   <pass>

   > 10.10.10.10:/vol/vol1    /mount          -               -                -              -

   > Press Ctrl+c                                                     = To save and exit from cat command

10. Now NFS is working properly

NetApp -Linux iscsi Setup

Step by Step procedure to setup IP SAN using Linux-Netapp-iscsi.

On Linux server :

1.   Install iSCSI initiator (iscsi-initiator-utils rpm) on your linux machine. This will create the necessary binaries and will create /etc/iscsi.conf and /etc/initiatorname.iscsi

2.   Add iscsi-iname to /etc/initiatorname.iscsi .
[root@unixfoo ~]# iscsi-iname
iqn.1987-05.com.cisco:01.44c65d9587d9
[root@unixfoo ~]#
Add the output to /etc/initiatorname.iscsi

3.   Add the below lines to /etc/iscsi.conf
Continuous=no
HeaderDigest=never
DataDigest=never
ImmediateData=yes
DiscoveryAddress=192.185.12.12

DiscoveryAddress should be the IP address of the storage.

On Netapp filer :

1.   Make sure you have iscsi license enabled.

2.   Create volume for holding the iscsi luns.
filer1> vol create iscsivol aggr01 100g

3.   Create lun on the volume
filer1> lun create -s 50g -t linux /vol/iscsivol/lun1

4.   Create an igroup and add the Linux iscsi-iname to it.
filer1> igroup create -i -t linux iscsigrp
filer1> igroup add iscsigrp iqn.1987-05.com.cisco:01.44c65d9587d9
filer1> igroup show
iscsigrp (iSCSI) (ostype: linux):
iqn.1987-05.com.cisco:01.44c65d9587d9 (logged in on: iswta)
filer1>

5.   Map the lun to the iscsi-group.
filer1> lun map /vol/iscsivol/lun1 iscsigrp 0

6.   Enable only one interface for iscsi use and disable others
filer1> iswt interface disable e7
filer1> iswt interface show
Interface e0 disabled
Interface e4 enabled
Interface e5 disabled
Interface e7 disabled
filer1>

7.   Done on the Netapp side.

On Linux again :

1.   Start iscsi initiator
[root@unixfoo ~]# /etc/init.d/iscsi start
Checking iscsi config: [ OK ]
Loading iscsi driver: [ OK ]
Starting iscsid: [ OK ]
[root@unixfoo ~]#

2.   Set iscsi initiator to start automatically after reboot.
[root@unixfoo ~]# chkconfig iscsi on

3.   Check whether the iscsi lun shows up on the linux machine.
[root@unixfoo ~]# iscsi-ls
*******************************************************************************
SFNet iSCSI Driver Version ...4:0.1.11-3(02-May-2006)
*******************************************************************************
TARGET NAME : iqn.1992-08.com.netapp:sn.50380528
TARGET ALIAS :
HOST ID : 2
BUS ID : 0
TARGET ID : 0
TARGET ADDRESS : 192.185.12.12:3260,2
SESSION STATUS : ESTABLISHED AT Sat Dec 29 21:55:37 PST 2007
SESSION ID : ISID 00023d000001 TSIH 501

DEVICE DETAILS:
---------------
LUN ID : 0
Vendor: NETAPP Model: LUN Rev: 0.2
Type: Direct-Access ANSI SCSI revision: 04
page83 type3: 60a980004f6444662653053584516d34
page80: 4f6444516d344305358066265a
Device: /dev/sdb

*******************************************************************************
[root@unixfoo ~]#

4.   Now you have a new device in your linux box (/dev/sdb) - that is your iscsi device. You can create filesystem on it and use it.