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2 or more iSCSI 6 years 10 months ago #1317

Thank U,

But still i am not able to find second iscsi LUN bellow is my config's

Please suggest.


[root@xenserver-61 ~]# cat /etc/drbd.conf
global { usage-count no; }
common { syncer { rate 100M; } }
resource iscsi1 {
protocol C;
net {
after-sb-0pri discard-zero-changes;
after-sb-1pri consensus; cram-hmac-alg sha1;
shared-secret PUTyourSECREThere;
}
on xenserver-61 {
device /dev/drbd1;
disk /dev/sda3;
address 192.168.2.10:7789;
meta-disk internal;
}
on xenserver-62 {
device /dev/drbd1;
disk /dev/sda3;
address 192.168.2.11:7789;
meta-disk internal;
}
}
resource iscsi2 {
protocol C;
net {
after-sb-0pri discard-zero-changes;
after-sb-1pri consensus; cram-hmac-alg sha1;
shared-secret PUTyourSECREThere;
}
on xenserver-61 {
device /dev/drbd2;
disk /dev/sdb;
address 192.168.2.10:7790;
meta-disk internal;
}
on xenserver-62 {
device /dev/drbd2;
disk /dev/sdb;
address 192.168.2.11:7790;
meta-disk internal;
}
}


[root@xenserver-61 ~]# cat /etc/lvm/lvm.conf


filter = [ "r|/dev/sda3|", "r|/dev/drbd1|","r|/dev/sdb|","r|/dev/drbd2|" ]


[root@xenserver-61 ~]# cat /etc/lvm/master/lvm.conf

filter = [ "r|/dev/sda3|", "r|/dev/drbd1|","r|/dev/sdb|","r|/dev/drbd2|" ]



[root@xenserver-61 ~]# /etc/tgt/targets.conf

############### BEGIN HALIZARD INSERTION ###############
<target iqn.2015.com.halizard:noSAN>
backing-store /dev/drbd1
lun 10
backing-store /dev/drbd2
lun 20
</target>
############### END HALIZARD INSERTION ###############

[root@xenserver-61 ~]# cat /etc/iscsi-ha/iscsi-ha.conf

DRBD_RESOURCES=iscsi1:iscsi2
ISCSI_TARGET_SERVICE=tgtd
DRBD_VIRTUAL_IP=192.168.2.12
DRBD_VIRTUAL_MASK=255.255.255.0
DRBD_INTERFACE=xenbr1
MONITOR_MAX_STARTS=5
MONITOR_DELAY=10
MONITOR_KILLALL=1
MONITOR_SCANRATE=5
ENABLE_LOGGING=1
MAIL_ON=1
MAIL_SUBJECT='HA-Lizard noSAN SYSTEM ALERT - FROM HOST: xenserver-61'
MAIL_FROM=root@localhost
MAIL_TO=root@localhost
MAIL_SCREEN_TIME=30
SMTP_SERVER=127.0.0.1
SMTP_PORT=25
SMTP_USER=
SMTP_PASS=
#END CONFIG FILE

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Last edit: by dhobale.

2 or more iSCSI 6 years 10 months ago #1318

Hi,

I am trying to configure 2 iscsi but facing issue i am not able to find second iscsi Lun.



Bellow is my "iscsi-cfg status" output.



Please find bellow Configuration and suggest if i am wrong somewhere.

[root@xenserver-61 ~]# cat /etc/drbd.conf
global { usage-count no; }
common { syncer { rate 100M; } }
resource iscsi1 {
protocol C;
net {
after-sb-0pri discard-zero-changes;
after-sb-1pri consensus; cram-hmac-alg sha1;
shared-secret PUTyourSECREThere;
}
on xenserver-61 {
device /dev/drbd1;
disk /dev/sda3;
address 192.168.2.10:7789;
meta-disk internal;
}
on xenserver-62 {
device /dev/drbd1;
disk /dev/sda3;
address 192.168.2.11:7789;
meta-disk internal;
}
}
resource iscsi2 {
protocol C;
net {
after-sb-0pri discard-zero-changes;
after-sb-1pri consensus; cram-hmac-alg sha1;
shared-secret PUTyourSECREThere;
}
on xenserver-61 {
device /dev/drbd2;
disk /dev/sdb;
address 192.168.2.10:7790;
meta-disk internal;
}
on xenserver-62 {
device /dev/drbd2;
disk /dev/sdb;
address 192.168.2.11:7790;
meta-disk internal;
}
}


[root@xenserver-61 ~]# cat /etc/lvm/lvm.conf

filter = [ "r|/dev/sda3|", "r|/dev/drbd1|","r|/dev/sdb|","r|/dev/drbd2|" ]


[root@xenserver-61 ~]# cat /etc/lvm/master/lvm.conf

filter = [ "r|/dev/sda3|", "r|/dev/drbd1|","r|/dev/sdb|","r|/dev/drbd2|" ]



[root@xenserver-61 ~]# /etc/tgt/targets.conf

############### BEGIN HALIZARD INSERTION ###############
<target iqn.2015.com.halizard:noSAN>
backing-store /dev/drbd1
lun 10
backing-store /dev/drbd2
lun 20
</target>
############### END HALIZARD INSERTION ###############

[root@xenserver-61 ~]# cat /etc/iscsi-ha/iscsi-ha.conf

DRBD_RESOURCES=iscsi1:iscsi2
ISCSI_TARGET_SERVICE=tgtd
DRBD_VIRTUAL_IP=192.168.2.12
DRBD_VIRTUAL_MASK=255.255.255.0
DRBD_INTERFACE=xenbr1
MONITOR_MAX_STARTS=5
MONITOR_DELAY=10
MONITOR_KILLALL=1
MONITOR_SCANRATE=5
ENABLE_LOGGING=1
MAIL_ON=1
MAIL_SUBJECT='HA-Lizard noSAN SYSTEM ALERT - FROM HOST: xenserver-61'
MAIL_FROM=root@localhost
MAIL_TO=root@localhost
MAIL_SCREEN_TIME=30
SMTP_SERVER=127.0.0.1
SMTP_PORT=25
SMTP_USER=
SMTP_PASS=
#END CONFIG FILE
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2 or more iSCSI 6 years 10 months ago #1319

It looks like your targets.conf file is incorrect. Take a look at the samples I posted above for the correct syntax.

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2 or more iSCSI 6 years 10 months ago #1321

Thanks Bill,

i have changed the config as sample which you posted but still i am not able to find second iscsi LUN.

############### BEGIN HALIZARD INSERTION ###############
<target iqn.2015.com.halizard:noSAN>
<backing-store /dev/drbd1>
lun 10
</backing-store>

<backing-store /dev/drbd2>
lun 20
</backing-store>
</target>
############### END HALIZARD INSERTION ###############


Please sugget...

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2 or more iSCSI 6 years 10 months ago #1323

Uh, it looks OK to me. I'm not sure what is wrong at this point.

Sal...?

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2 or more iSCSI 6 years 10 months ago #1326

  • Salvatore Costantino
  • Salvatore Costantino's Avatar
  • Offline
  • Posts: 722
All the config examples appear correct.

Did you remember to prepare the the new resource and create DRBD meta-data for it?

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