[Linux-cluster] RE: iSCSI Setup as Alternative to Shared Storage..
Singh Raina, Ajeet
ajeet.singh.raina at logica.com
Fri Jul 11 06:14:41 UTC 2008
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 at 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: [Linux-cluster] RE: iSCSI Setup as Alternative to Shared
Storage..
[root at 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 at BL02DL385 ~]# chkconfig iscsi on
[root at BL02DL385 ~]#
I guess it worked.Finally ISCSI Setup Done.
What is the next Step?
Pls help
________________________________
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Singh Raina,
Ajeet
Sent: Thursday, July 10, 2008 4:28 PM
To: linux clustering
Subject: RE: [Linux-cluster] RE: iSCSI Setup as Alternative to Shared
Storage..
I followed as said in the doc and found it this way:
[root at 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 at 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 at BL02DL385 ~]# service iscsi start
Checking iscsi config: [ OK ]
Loading iscsi driver: [ OK ]
Starting iscsid: [ OK ]
[root at BL02DL385 ~]# CD /proc/scsi/scsi
-bash: CD: command not found
[root at 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 at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Singh Raina,
Ajeet
Sent: Thursday, July 10, 2008 4:13 PM
To: linux clustering
Subject: RE: [Linux-cluster] 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 at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of P, Prakash
Sent: Thursday, July 10, 2008 3:39 PM
To: linux clustering
Subject: RE: [Linux-cluster] 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 at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Singh Raina,
Ajeet
Sent: Thursday, July 10, 2008 3:30 PM
To: linux clustering
Subject: RE: [Linux-cluster] RE: iSCSI Setup as Alternative to Shared
Storage..
I am Facing this Issue:
[root at 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 at vjs ~]# mkdir cluster_share
[root at vjs ~]# cd cluster_share/
[root at vjs cluster_share]# touch shared
[root at vjs cluster_share]# cd
[root at vjs ~]# mkdir /usr/src/iscsitarget
[root at vjs ~]# cd /usr/src/
debug/ iscsitarget/ kernels/ redhat/
[root at vjs ~]# cd /usr/src/iscsitarget/
[root at vjs iscsitarget]# rpm -Uvh /usr/src/redhat/RPMS/
noarch/ x86_64/
[root at vjs iscsitarget]# rpm -Uvh /usr/src/redhat/RPMS/
noarch/ x86_64/
[root at 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 at 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 at vjs iscsitarget]# chkconfig --add iscsi-target
[root at vjs iscsitarget]# chkconfig --level 2345 iscsi-target on
[root at 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 at vjs iscsitarget]# hostname
vjs
[root at vjs iscsitarget]# vi /etc/hosts
[root at vjs iscsitarget]# hostname
vjs
[root at vjs iscsitarget]# vi /etc/hosts
[root at 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 at vjs iscsitarget]# vjs
bash: vjs: command not found
[root at 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 at 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 at vjs iscsitarget]# vi /etc/ietd.conf
[root at 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 at vjs iscsitarget]#
[root at vjs iscsitarget]#
________________________________
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Singh Raina,
Ajeet
Sent: Thursday, July 10, 2008 2:57 PM
To: linux clustering
Subject: RE: [Linux-cluster] 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 at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of P, Prakash
Sent: Thursday, July 10, 2008 2:48 PM
To: linux clustering
Subject: RE: [Linux-cluster] RE: iSCSI Setup as Alternative to Shared
Storage..
________________________________
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Singh Raina,
Ajeet
Sent: Thursday, July 10, 2008 2:42 PM
To: linux clustering
Subject: RE: [Linux-cluster] 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 at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of P, Prakash
Sent: Thursday, July 10, 2008 2:38 PM
To: linux clustering
Subject: [Linux-cluster] RE: iSCSI Setup as Alternative to Shared
Storage..
________________________________
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Singh Raina,
Ajeet
Sent: Thursday, July 10, 2008 2:22 PM
To: linux-cluster at redhat.com
Subject: [Linux-cluster] 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 at 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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not an intended recipient then please promptly delete this e-mail and
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