RE: RE: iSCSI Setup as Alternative to Shared Storage..

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To dicover this volume from both nodes, hopefully you are aware of these iscsi commands

 

  Just giving examples

     1) First discover if these volumes are visible

         

1) # iscsiadm --mode discovery --type sendtargets --portal 10.1.40.222      (where 10.1.40.222 is IP address of iscsi   )

10.1.40.2:3260,1 iqn.2007-06.com.unisys:prov

10.1.40.2:3260,1 iqn.2007-06.com.unisys:prov-goldilocks1

10.1.40.2:3260,1 iqn.2007-06.com.unisys:p3vmware

10.1.40.2:3260,1 iqn.2007-06.com.unisys:p2vmware

 

                You can see it is showing  prov, prov-goldilocks1,p3vmware,p2vmware volumes [whichever  is created]

 

 2)Login to iscsi

       iscsiadm --mode node --targetname iqn.2007-06.com.unisys:prov  --portal 10.1.40.222 .login    

 

 

 3)do cat /proc/partitions

        It should show you /sd **

 

 4)mount that /dev/sd*   to any of cluster [it should allow you to mount from both nodes

 

 

  Just read some iscsi manuals and do this [withought GUI you can do that ..Add new resource basically related to clustering resource which automatically

  Mount your shared device when cluster manager is started )

  

So better configure it using iscsi commands and see whether you can mount it from both nodes [then you can add a resource about it]         

 

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Friday, July 11, 2008 12:33 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

Ya,I have now created /newshare directory on the both scsi initiator machine(cluster nodes).

I made the following entry thru system-config-cluster:

 

Resource >> Add New Resource >> Filesystem

Name : Sharedstorage

Mount Point : /newshare

Device : /dev/sda6

Option :

Filesystem type : ext3

 

Saved the file  and sent to the other Cluster Nodes.

 

Now What Next?

How will I know if the Shared Storage is seen through both the Cluster Nodes?

 

Earlier I had a script called duoscript on both the Cluster Nodes.What I had tested:

I ran the script on both the cluster nodes.I stopped few processes on one of node,suddenly other took the responsibility.

Now where should I put the script on shared Storage(target)?

 

Pls Help

 

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Mujtaba, Sayed Mohammed
Sent: Friday, July 11, 2008 12:26 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

Re:When I click on Resource >>  File System on Cluster Tool...It asked for Mount point, Device, Option,Name,filesystem id, filesystem type..What Entry I need to make ?

 Create one  directory as mount point , Select any file system which you want to create in list ,you can choose default file system ID there ..

 GUI will do the rest ..

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Friday, July 11, 2008 11:45 AM
To: linux-cluster@xxxxxxxxxx
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

Anyway, I am successful in setting Up iSCSI iniatiator and Target.

What I did is Created a raw partition(unformatted ) on target machine and restarted both the machine.

I put :

Lun 0 path=/dev/sda6

 

And That Did job for me.

 

Now I can easily see:

 

 [root@BL01DL385 ~]# cat /proc/scsi/scsi

Attached devices:

Host: scsi1 Channel: 00 Id: 00 Lun: 00

  Vendor: IET      Model: VIRTUAL-DISK     Rev: 0

  Type:   Direct-Access                    ANSI SCSI revision: 04

 

The “Virtual DISk” Entry confirms that.

 

Now I am making entry in

#system-config-cluster and Want to know what exact entry I need to make here:

 

When I click on Resource >>  File System on Cluster Tool...It asked for Mount point, Device, Option,Name,filesystem id, filesystem type..What Entry I need to make ?

 

My machine address is 10.14.236.134.

Path where Unformatted Partition made is /dev/sda6

 

As for Now, I have only unformatted partition?Do I need to format it?

 

Pls Help

 

 

 

 

From: Singh Raina, Ajeet
Sent: Thursday, July 10, 2008 4:33 PM
To: 'linux clustering'
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

[root@BL02DL385 ~]# iscsi-ls

*******************************************************************************

SFNet iSCSI Driver Version ...4:0.1.11-6(03-Aug-2007)

*******************************************************************************

TARGET NAME             : iqn.2008-07.com.logica.bl04mpdsk:storage.lun1

TARGET ALIAS            :

HOST ID                 : 0

BUS ID                  : 0

TARGET ID               : 0

TARGET ADDRESS          : 10.14.236.134:3260,1

SESSION STATUS          : ESTABLISHED AT Wed Jul  9 12:22:50 IST 2008

SESSION ID              : ISID 00023d000001 TSIH 100

*******************************************************************************

[root@BL02DL385 ~]# chkconfig iscsi on

[root@BL02DL385 ~]#

 

I guess it worked.Finally ISCSI Setup Done.

 

What is the next Step?

Pls help

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Thursday, July 10, 2008 4:28 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

I followed as said in the doc and found it this way:

 

[root@BL02DL385 ~]# rpm -ivh iscsi-initiator-utils-4.0.3.0-6.x86_64.rpm

warning: iscsi-initiator-utils-4.0.3.0-6.x86_64.rpm: V3 DSA signature: NOKEY, key ID 9b3c94f4

Preparing...                ########################################### [100%]

   1:iscsi-initiator-utils  ########################################### [100%]

 [root@BL02DL385 ~]# vi /etc/iscsi.conf

 

DiscoveryAddress=10.14.236.134

 # OutgoingUsername=fred

 # OutgoingPassword=uhyt6h

#           and/or

#

DiscoveryAddress=10.14.236.134

#  IncomingUsername=mary

#  IncomingPassword=kdhjkd9l

#

 

[root@BL02DL385 ~]# service iscsi start

Checking iscsi config:                                     [  OK  ]

Loading iscsi driver:                                      [  OK  ]

Starting iscsid:                                           [  OK  ]

 [root@BL02DL385 ~]# CD /proc/scsi/scsi

-bash: CD: command not found

[root@BL02DL385 ~]# vi /proc/scsi/scsi

 

 

It is Displaying so:

 

Attached devices:

Host: scsi0 Channel: 00 Id: 00 Lun: 00

  Vendor: IET      Model: VIRTUAL-DISK     Rev: 0

  Type:   Direct-Access                    ANSI SCSI revision: 04

~

~

 

Is it working fine?

 

I will do run the same command sequence in the other Cluster Node.

 

Is it fine upto this point?

 

What Next?

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Thursday, July 10, 2008 4:13 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

Great !!!

 

I ran depmod and it ran well now.

 

Thanks for the link anyway.

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of P, Prakash
Sent: Thursday, July 10, 2008 3:39 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

This is related to IET. Go through their mailing list to find the solution.

 

http://www.nabble.com/iSCSI-Enterprise-Target-f4401.html

 

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Thursday, July 10, 2008 3:30 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

I am Facing this Issue:

 

[root@vjs iscsitarget]# service iscsi-target restart

Stoping iSCSI target service:                              [FAILED]

Starting iSCSI target service: FATAL: Module iscsi_trgt not found.

netlink fd

: Connection refused

                                                           [FAILED]

 

Logs: /var/log/messages

 

Jul 10 15:25:24 vjs ietd: nl_open -1

Jul 10 15:25:24 vjs ietd: netlink fd

Jul 10 15:25:24 vjs ietd: : Connection refused

Jul 10 15:25:24 vjs iscsi-target: ietd startup failed

 

Any idea?

 

I just did the following steps:

[root@vjs ~]# mkdir cluster_share

[root@vjs ~]# cd cluster_share/

[root@vjs cluster_share]# touch shared

[root@vjs cluster_share]# cd

[root@vjs ~]# mkdir /usr/src/iscsitarget

[root@vjs ~]# cd /usr/src/

debug/       iscsitarget/ kernels/     redhat/

[root@vjs ~]# cd /usr/src/iscsitarget/

[root@vjs iscsitarget]# rpm -Uvh /usr/src/redhat/RPMS/

noarch/ x86_64/

[root@vjs iscsitarget]# rpm -Uvh /usr/src/redhat/RPMS/

noarch/ x86_64/

[root@vjs iscsitarget]# rpm -Uvh /usr/src/redhat/RPMS/x86_64/iscsitarget-

iscsitarget-0.4.12-6.x86_64.rpm                     iscsitarget-kernel-0.4.12-6_2.6.9_34.EL.x86_64.rpm

iscsitarget-debuginfo-0.4.12-6.x86_64.rpm

[root@vjs iscsitarget]# rpm -Uvh /usr/src/redhat/RPMS/x86_64/iscsitarget-0.4.12-6.x86_64.rpm /usr/src/redhat/RPMS/x86_64/iscsitarget-kernel-0.4.12-6_2.6.9_34.EL.x86_64.rpm

Preparing...                ########################################### [100%]

   1:iscsitarget-kernel     ########################################### [ 50%]

   2:iscsitarget            ########################################### [100%]

[root@vjs iscsitarget]# chkconfig --add iscsi-target

[root@vjs iscsitarget]# chkconfig --level 2345 iscsi-target on

[root@vjs iscsitarget]# vi /etc/ietd.conf

 

 

 

Target iqn.2008-07.com.logica.vjs:storage.lun1

        IncomingUser

        OutgoingUser

        Lun 0 Path=/root/cluster_share,Type=fileio

        Alias iDISK0

 

I had created a cluster_share Folder earlier.(Is it bocoz of Folder?)Doubt??

[root@vjs iscsitarget]# hostname

vjs

[root@vjs iscsitarget]# vi /etc/hosts

[root@vjs iscsitarget]# hostname

vjs

[root@vjs iscsitarget]# vi /etc/hosts

[root@vjs iscsitarget]# ping

Usage: ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline]

            [-p pattern] [-s packetsize] [-t ttl] [-I interface or address]

            [-M mtu discovery hint] [-S sndbuf]

            [ -T timestamp option ] [ -Q tos ] [hop1 ...] destination

[root@vjs iscsitarget]# vjs

bash: vjs: command not found

[root@vjs iscsitarget]# ping vjs

PING vjs.logica.com (10.14.236.134) 56(84) bytes of data.

64 bytes from vjs.logica.com (10.14.236.134): icmp_seq=0 ttl=64 time=0.053 ms

64 bytes from vjs.logica.com (10.14.236.134): icmp_seq=1 ttl=64 time=0.033 ms

64 bytes from vjs.logica.com (10.14.236.134): icmp_seq=2 ttl=64 time=0.029 ms

 

--- vjs.logica.com ping statistics ---

3 packets transmitted, 3 received, 0% packet loss, time 1999ms

rtt min/avg/max/mdev = 0.029/0.038/0.053/0.011 ms, pipe 2

[root@vjs iscsitarget]# ping vjs.logica.com

PING vjs.logica.com (10.14.236.134) 56(84) bytes of data.

64 bytes from vjs.logica.com (10.14.236.134): icmp_seq=0 ttl=64 time=0.026 ms

64 bytes from vjs.logica.com (10.14.236.134): icmp_seq=1 ttl=64 time=0.030 ms

 

--- vjs.logica.com ping statistics ---

2 packets transmitted, 2 received, 0% packet loss, time 999ms

rtt min/avg/max/mdev = 0.026/0.028/0.030/0.002 ms, pipe 2

[root@vjs iscsitarget]# vi /etc/ietd.conf

[root@vjs iscsitarget]# service iscsi-target restart

Stoping iSCSI target service:                              [FAILED]

Starting iSCSI target service: FATAL: Module iscsi_trgt not found.

netlink fd

: Connection refused

                                                           [FAILED]

[root@vjs iscsitarget]#

[root@vjs iscsitarget]#

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Thursday, July 10, 2008 2:57 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

So I have the following Entry at my ietd.conf file:

 

# iscsi target configuration 
 
Target iqn.2008-10.com.logical.pe:storage.lun1
        IncomingUser 
        OutgoingUser
        Lun 0 Path=/home/vjs/sharess,Type=fileio
        Alias iDISK0
        #MaxConnections  6

 

Is above Entry Correct?

My machine Hostname is pe.logical.com.

Little confused about storage.lun1 whats that?

I have now not included any incoming or outgoing user?Its open for all.

 

What About Alias Entry?

 

Ok After this entry being made, I have confusion on client side too.

 

The Doc says You need to make Entry on /etc/iscsi.conf file as:

 

# simple iscsi.conf
 
DiscoveryAddress=172.30.0.28
            OutgoingUserName=gfs
            OutgoingPassword=secretsecret
       LoginTimeout=15
       DiscoveryAddress=172.30.0.28

 

What’s the above entry means?IP??

 

 

As for My Setup I am setting up RHEL 4.0 machine with IP 10.14.236.134 as Target Machine and The two Nodes 10.14.236.106 and 10.14.236 108 as Already been in Cluster Nodes.

 

Thanks for Helping me out. But You need to also Help me What Entry in Cluster.conf I need to make after these things being completed?

 

 

 

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of P, Prakash
Sent: Thursday, July 10, 2008 2:48 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

 

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Thursday, July 10, 2008 2:42 PM
To: linux clustering
Subject: RE: RE: iSCSI Setup as Alternative to Shared Storage..

 

Shall I need to mention Lun 0 ? is it needed?

 

Yes, of course it’s needed


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of P, Prakash
Sent: Thursday, July 10, 2008 2:38 PM
To: linux clustering
Subject: RE: iSCSI Setup as Alternative to Shared Storage..

 

 

 


From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Singh Raina, Ajeet
Sent: Thursday, July 10, 2008 2:22 PM
To: linux-cluster@xxxxxxxxxx
Subject: iSCSI Setup as Alternative to Shared Storage..

 

I want to setup iSCSI as I am running short of Shared Storage.

In one of the Doc http://mail.digicola.com/wiki/index.php?title=User:Martin:iSCSI it says that :

[doc]

Install the Target

1. Install RHEL4, I used kickstart with just "@ base" for packages. Configure the system with two drives sda and sdb or create two logical volumes(lvm). The first disk is for the OS and the second for the iSCSI storage

[/doc]

 

My Hard Disk Partition says:

 

[code]

[root@vjs ~]# fdisk -l

 

Disk /dev/sda: 80.0 GB, 80026361856 bytes

255 heads, 63 sectors/track, 9729 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1          13      104391   83  Linux

/dev/sda2              14        9729    78043770   8e  Linux LVM

 

[/code]

 

[code]

 

# This file is edited by fstab-sync - see 'man fstab-sync' for details

/dev/VolGroup00/LogVol00 /                       ext3    defaults        1 1

LABEL=/boot             /boot                   ext3    defaults        1 2

/dev/VolGroup00/LogVol02 /data                   ext3    defaults        1 2

none                    /dev/pts                devpts  gid=5,mode=620  0 0

none                    /dev/shm                tmpfs   defaults        0 0

none                    /proc                   proc    defaults        0 0

none                    /sys                    sysfs   defaults        0 0

#/dev/dvd               /mnt/dvd                auto    defaults,exec,noauto,enaged 0 0

/dev/hda                /media/cdrom            pamconsole,exec,noauto,managed 0 0

/dev/VolGroup00/LogVol01 swap                    swap    defaults        0 0

 

[/code]

 

Since I need to make entry on:

 

iscsi target configuration 
 
Target iqn.2000-12.com.digicola:storage.lun1
        IncomingUser gfs secretsecret
        OutgoingUser
        Lun 0 Path=/dev/sdb,Type=fileio
        Alias iDISK0
        #MaxConnections  6
 
In /etc/ietd.conf
 
Should I need to make separate partition or mention ??? under Lun 0 path=??? Entry?
 
If you wish you can create a separate partition. Else create a file & give the full path of the file. [e.g path=/home/test/target_file]
 
Pls Help

 


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This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.


This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.


This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.


This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.


This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.


This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.

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