Hi,
Please find my answers below: Appreciate you help.

> What Target are you using?

both the systems are ubuntu 8.10

I beat my head on a issue when I first
> setup regarding access permissions. If you don't have the permissions
> right on the array, open-iscsi will let you see it but not log in.

I 'm logged in as root and have executed all the commands. When you
say array, fyi it is just a secondary hard drive conencted to the
system.

> Another thing you may want to check, if you are sharing luns between
> systems, some arrays require you to explicitly allow that behavior.

Is there a command for that? how do i check if i need to explicitly
allow sharing?

> And last but not least, if you have a backend and a front end
> connection make sure you are connecting to the array with the right
> interface. Make sure one connection does not have a matching MTU
> *jumbo frames with the array it can cause strange behavior.

I'm sorry i 'm unable to understand this(if you could elaborate on
this pls: newbie). But to make things simple, my scenario is as
follows: Home pcs(900Mhz/512MB RAM/P3): 2 systems with ubuntu 8.10
with both open-iscsi installed.

On System 1 : i attached a second hard drive of size 20G. I installed
lvm2 and I created 1 physical volume of size 20G, 1 volume group vg1
and then created 3 logical volumes /dev/vg1/asm 17G, /dev/vg1/ocr 960M
and /dev/vg1/vote 750M.

On System 2: executed commands:

iscsiadm -m discovery -t st -p 192.168.20.22
The output was:
192.168.20.22:3260,1 iqn.2001-04.com.ubuntu:scsi.disk.vg.asm
192.168.20.22:3260,1 iqn.2001-04.com.ubuntu:scsi.disk.vg.ocr
192.168.20.22:3260,1 iqn.2001-04.com.ubuntu:scsi.disk.vg.vote

iscsiadm -m node -T iqn.2001-04.com.ubuntu:scsi.disk.vg.asm -p 192.168.20.22 -l
Output: Login session [iface: default, target:
iqn.2001-04.com.ubuntu:scsi.disk.vg.asm, portal: 192.168.20.22,3260]

iscsiadm -m node -T iqn.2001-04.com.ubuntu:scsi.disk.vg.vote -p 192.168.20.22 -l
Output: Login session [iface: default, target:
iqn.2001-04.com.ubuntu:scsi.disk.vg.vote, portal: 192.168.20.22,3260]

iscsiadm -m node -T iqn.2001-04.com.ubuntu:scsi.disk.vg.ocr -p 192.168.20.22 -l
Output: Login session [iface: default, target:
iqn.2001-04.com.ubuntu:scsi.disk.vg.ocr, portal: 192.168.20.22,3260]

I must really thank you for having replied me. I was just feeling bad
that no one replied me on this issue. Thank you so much.

> On Apr 15, 10:27 pm, sundar mahadevan <sundarmahadeva...@gmail.com>
> wrote:
>> I tried the same connecting another hard drive of 20 G with 3 logical
>> volumes namely: asm 17G , ocr 924M and vote 760M.
>>
>> iscsiadm -m node -T iqn.2001-04.com.ubuntu:scsi.disk.vg1.ocr -p 
>> 192.168.20.22 -l
>> iscsiadm -m node -T iqn.2001-04.com.ubuntu:scsi.disk.vg1.vote -p
>> 192.168.20.22 -l
>> iscsiadm -m node -T iqn.2001-04.com.ubuntu:scsi.disk.vg1.asm -p 
>> 192.168.20.22 -l
>>
>> Looks like it only created the first one: ocr
>>
>> Here is the log from /var/log/syslog
>> Apr 15 21:10:17 sunny2 kernel: [ 1603.409561] Loading iSCSI transport
>> class v2.0-870.
>> Apr 15 21:10:17 sunny2 kernel: [ 1603.486634] iscsi: registered transport 
>> (tcp)
>> Apr 15 21:10:18 sunny2 kernel: [ 1603.848719] iscsi: registered transport 
>> (iser)
>> Apr 15 21:10:18 sunny2 iscsid: iSCSI logger with pid=5912 started!
>> Apr 15 21:10:18 sunny2 kernel: [ 1604.408284] scsi2 : iSCSI Initiator
>> over TCP/IP
>> Apr 15 21:10:19 sunny2 iscsid: transport class version 2.0-870. iscsid
>> version 2.0-865
>> Apr 15 21:10:19 sunny2 iscsid: iSCSI daemon with pid=5914 started!
>> Apr 15 21:10:19 sunny2 iscsid: Could not verify connection 1:2. Dropping 
>> event.
>> Apr 15 21:10:19 sunny2 iscsid: Could not verify connection 1:2. Dropping 
>> event.
>> Apr 15 21:10:20 sunny2 kernel: [ 1606.064265] scsi3 : iSCSI Initiator
>> over TCP/IP
>> Apr 15 21:10:21 sunny2 iscsid: Could not verify connection 2:3. Dropping 
>> event.
>> Apr 15 21:10:21 sunny2 iscsid: Could not verify connection 2:3. Dropping 
>> event.
>> Apr 15 21:10:21 sunny2 kernel: [ 1607.592257] scsi4 : iSCSI Initiator
>> over TCP/IP
>> Apr 15 21:10:22 sunny2 iscsid: Could not verify connection 3:4. Dropping 
>> event.
>> Apr 15 21:10:22 sunny2 iscsid: Could not verify connection 3:4. Dropping 
>> event.
>> Apr 15 21:10:23 sunny2 kernel: [ 1609.120249] scsi5 : iSCSI Initiator
>> over TCP/IP
>> Apr 15 21:10:24 sunny2 iscsid: Could not verify connection 4:5. Dropping 
>> event.
>> Apr 15 21:10:24 sunny2 iscsid: Could not verify connection 4:5. Dropping 
>> event.
>> Apr 15 21:15:00 sunny2 kernel: [ 1886.664257] scsi6 : iSCSI Initiator
>> over TCP/IP
>> Apr 15 21:15:01 sunny2 iscsid: Could not verify connection 5:6. Dropping 
>> event.
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.946886] scsi 6:0:0:0:
>> Direct-Access     IET      VIRTUAL-DISK     0    PQ: 0 ANSI: 4
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.952267] sd 6:0:0:0: [sdb]
>> 1892352 512-byte hardware sectors (969 MB)
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.956338] sd 6:0:0:0: [sdb] Write
>> Protect is off
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.956365] sd 6:0:0:0: [sdb] Mode
>> Sense: 77 00 00 08
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.964101] sd 6:0:0:0: [sdb] Write
>> cache: disabled, read cache: enabled, doesn't support DPO or FUA
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.976089] sd 6:0:0:0: [sdb]
>> 1892352 512-byte hardware sectors (969 MB)
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.986197] sd 6:0:0:0: [sdb] Write
>> Protect is off
>> Apr 15 21:15:01 sunny2 kernel: [ 1886.986228] sd 6:0:0:0: [sdb] Mode
>> Sense: 77 00 00 08
>> Apr 15 21:15:01 sunny2 kernel: [ 1887.000082] sd 6:0:0:0: [sdb] Write
>> cache: disabled, read cache: enabled, doesn't support DPO or FUA
>> Apr 15 21:15:01 sunny2 kernel: [ 1887.002741]  sdb: unknown partition table
>> Apr 15 21:15:01 sunny2 kernel: [ 1887.042501] sd 6:0:0:0: [sdb]
>> Attached SCSI disk
>> Apr 15 21:15:01 sunny2 kernel: [ 1887.043773] sd 6:0:0:0: Attached
>> scsi generic sg1 type 0
>> Apr 15 21:15:02 sunny2 iscsid: connection5:0 is operational now
>> Apr 15 21:15:20 sunny2 iscsid: Could not get host for sid 5.
>> Apr 15 21:15:20 sunny2 iscsid: could not get host_no for session 6.
>> Apr 15 21:15:20 sunny2 iscsid: could not find session info for session5
>> Apr 15 21:15:20 sunny2 iscsid: session
>> [iqn.2001-04.com.ubuntu:scsi.disk.vg1.vote,192.168.20.22,3260] already
>> running.
>> Apr 15 21:15:28 sunny2 iscsid: Nop-out timedout after 15 seconds on
>> connection 5:0 state (3). Dropping session.
>> Apr 15 21:15:28 sunny2 iscsid: connection5:0 is operational after
>> recovery (1 attempts)
>> Apr 15 21:15:33 sunny2 iscsid: Could not get host for sid 5.
>> Apr 15 21:15:33 sunny2 iscsid: could not get host_no for session 6.
>> Apr 15 21:15:33 sunny2 iscsid: could not find session info for session5
>> Apr 15 21:15:33 sunny2 iscsid: session
>> [iqn.2001-04.com.ubuntu:scsi.disk.vg1.asm,192.168.20.22,3260] already
>> running.
>> Apr 15 21:15:54 sunny2 iscsid: Nop-out timedout after 15 seconds on
>> connection 5:0 state (3). Dropping session.
>> Apr 15 21:15:54 sunny2 iscsid: connection5:0 is operational after
>> recovery (1 attempts)
>>
>> Could someone help me please. I have been battling to figure this out
>> for a while. It really is frustrating that nothing works. Thanks in
>> advance.
>>
>> On Wed, Apr 15, 2009 at 3:58 PM, sundar mahadevan
>>
>> <sundarmahadeva...@gmail.com> wrote:
>> > Could someone please help me with this issue.....
>>
>> > On Wed, Apr 15, 2009 at 11:41 AM, sundar mahadevan
>> > <sundarmahadeva...@gmail.com> wrote:
>> >> Hi,
>> >> I'm a newbie trying to setup open-iscsi on ubuntu 8.10(kernel 2.6.27-11).
>>
>> >> I created 3 logical volumes(asm : 37G, ocr: 2G and vote 1G) under a
>> >> volume group vg1 comprising of 3 physical volumes (totalling 40G)
>>
>> >> Here are my commands from client side:
>>
>> >>    sudo iscsiadm -m discovery -t st -p 192.168.20.22
>>
>> >> lists:
>> >> 192.168.20.22:3260,1 iqn.2001-04.com.ezhome:scsi.disk.vg1.asm
>> >> 192.168.20.22:3260,1 iqn.2001-04.com.ezhome:scsi.disk.vg1.ocr
>> >> 192.168.20.22:3260,1 iqn.2001-04.com.ezhome:scsi.disk.vg1.vote
>>
>> >>    sudo /etc/init.d/open-iscsi restart
>>
>> >>    sudo iscsiadm -m node -T iqn.2001-04.com.ezhome:scsi.disk.vg1.asm
>> >> -p 192.168.20.22 -o update -n node.conn[0].startup -v automatic
>>
>> >>    sudo iscsiadm -m node -T iqn.2001-04.com.ezhome:scsi.disk.vg1.ocr
>> >> -p 192.168.20.22 -o update -n node.conn[0].startup -v automatic
>>
>> >>    sudo iscsiadm -m node -T iqn.2001-04.com.ezhome:scsi.disk.vg1.vote
>> >> -p 192.168.20.22 -o update -n node.conn[0].startup -v automatic
>>
>> >>    sudo /etc/init.d/open-iscsi restart
>>
>> >> fdisk -l and dmesg
>>
>> >> 1) list a new drive /dev/sdb of size 39.7 GB but there should be 2
>> >> more drives and the size of /dev/sdb is surprising because there are
>> >> no drives of size 39.7G
>>
>> >> 2) What am i missing here for other 2 drives to be visible.
>>
>> >> 3) Changes made to /etc/ietd.conf and then /etc/init.d/open-iscsi
>> >> restart does not get reflected. I have to reboot the system to notice
>> >> the changes. Any ideas?
>>
>> >> 4) am i supposed to use /etc/init.d/iscsitarget stop/restart to stop
>> >> and restart iscsitargets?
>>
>> >> Thanks in advance.
>>
>>
> >
>

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