problems connecting to Equallogic 6100

[Elvar]

Hey all,

I'm having no luck connecting open-iscsi from Ubuntu 12.10 to an
Equallogic 6100XV. I've tried allowing unauthenticated access from the
subnet the ubuntu box is on and also setting up a CHAP account but no
matter what I do I constantly get the following error...

iscsiadm -m node --login

"iscsiadm: initiator reported error (19 - encountered non-retryable
iSCSI login failure)"

The discovery portion seems to work fine but not the mounting portion. I
do not need multipath at all for this scenario.

Any help on this would be greatly appreciated!!

Kind regards,
Elvar

[Donald Williams]

Hello, 

 What version of FW is on the EQL array?   Any error messages on the EQL array events? 

 I work for Dell/Equallogic and I have no issues connecting up ubuntu 12.10 to EQL.    The only recent issue I've seen with 12.x is 12.04 the startup scripts don't login to iSCSI after a reboot or on start up. 

# iscsiadm -m session -P 1

Target: iqn.2001-05.com.equallogic:4-52aed6-2fdd8cd64-5e6001a5b9d511bd-ubuntu-test-vol1

        Current Portal: 172.23.10.242:3260,1

        Persistent Portal: 172.23.10.240:3260,1

                **********

                Interface:

                **********

                Iface Name: eth1

                Iface Transport: tcp

                Iface Initiatorname: iqn.1993-08.org.debian:01:8ab9cf5340f0

                Iface IPaddress: 172.23.74.186

                Iface HWaddress: <empty>

                Iface Netdev: eth1

                SID: 1

                iSCSI Connection State: LOGGED IN

                iSCSI Session State: LOGGED_IN

                Internal iscsid Session State: NO CHANGE

        Current Portal: 172.23.10.204:3260,1

        Persistent Portal: 172.23.10.240:3260,1

                **********

                Interface:

                **********

                Iface Name: eth0

                Iface Transport: tcp

                Iface Initiatorname: iqn.1993-08.org.debian:01:8ab9cf5340f0

                Iface IPaddress: 172.23.71.231

                Iface HWaddress: <empty>

                Iface Netdev: eth0

                SID: 2

                iSCSI Connection State: LOGGED IN

                iSCSI Session State: LOGGED_IN

                Internal iscsid Session State: NO CHANGE

I'm curious why you don't want MPIO?  

You'll need to modify /etc/sysctl.conf for MPIO

# ARP connection mods

net.ipv4.conf.all.arp_ignore=1

net.ipv4.conf.all.arp_announce=2

net.ipv4.conf.all.rp_filter=2

For ACLs I typically use the initiator name from the ubuntu server.   I.e. iqn.1993-08.org.debian:01:8ab9cf5340f0

Have you opened a case with Dell?    While not a 'supported' OS, we will do best effort to assist you. 

 Can you dump the following? 

$sudo iscsiadm -m node 

$sudo iscsiadm -m session 

$sudo iscsiadm -m iface 

$sudo iscsiadm -m discovery 

Do you have a NIC that is on the same subnet as the array or are you routing to the SAN? 

NICs on the same subnet is the preferred way.   

Regards, 

Don 

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[Mike Christie]

On 03/28/2013 10:51 AM, Elvar wrote:
>
> Hey all,
>
> I'm having no luck connecting open-iscsi from Ubuntu 12.10 to an
> Equallogic 6100XV. I've tried allowing unauthenticated access from the
> subnet the ubuntu box is on and also setting up a CHAP account but no
> matter what I do I constantly get the following error...
>
> iscsiadm -m node --login
>
> "iscsiadm: initiator reported error (19 - encountered non-retryable
> iSCSI login failure)"
>

Send the /var/log/messages, iscsid.conf and output of

iscsiadm -m node -T youtarget


for the target you are trying to log into. That error indicates you
probably messed up on the CHAP setup or initiator ACL type of setup.

[Mark Lehrer]

> iscsiadm -m node --login

I have an EqualLogic and it works pretty well.

I typically specify the target with -T, and the grapdmin user console
shows errors too (if the initator is connect to a good IP).

Is it timing out or failing right away?

Can you double check that the target portal IP is correct? Maybe try
defining the target as "unrestricted" to make sure it isn't a password
kind of problem.

Mark

[Elvar]

Hey Mark, sorry for the delayed response. I finally got it connected
after deleting all of my discovery information and starting from
scratch. I wasn't able to get it connected using CHAP so I just
restricted it based on IP address. I'm using the latest firmware on the
PS6100XV as of last week. Since getting it connected I haven't had any
issues.

Kind regards,

[Elvar]

On 3/29/2013 2:16 PM, Donald Williams wrote:
> Hello,
>
> What version of FW is on the EQL array? Any error messages on the
> EQL array events?
>
> I work for Dell/Equallogic and I have no issues connecting up ubuntu
> 12.10 to EQL. The only recent issue I've seen with 12.x is 12.04
> the startup scripts don't login to iSCSI after a reboot or on start up.
>
> # iscsiadm -m session -P 1
> Target:
> iqn.2001-05.com.equallogic:4-52aed6-2fdd8cd64-5e6001a5b9d511bd-ubuntu-test-vol1

> Current Portal: 172.23.10.242:3260 <http://172.23.10.242:3260>,1
> Persistent Portal: 172.23.10.240:3260
> <http://172.23.10.240:3260>,1

> **********
> Interface:
> **********
> Iface Name: eth1
> Iface Transport: tcp
> Iface Initiatorname:
> iqn.1993-08.org.debian:01:8ab9cf5340f0
> Iface IPaddress: 172.23.74.186
> Iface HWaddress: <empty>
> Iface Netdev: eth1
> SID: 1
> iSCSI Connection State: LOGGED IN
> iSCSI Session State: LOGGED_IN
> Internal iscsid Session State: NO CHANGE

> Current Portal: 172.23.10.204:3260 <http://172.23.10.204:3260>,1
> Persistent Portal: 172.23.10.240:3260
> <http://172.23.10.240:3260>,1

Hey Don, I did finally get it connected. The reason I don't need mpio is
because I'm just connecting to this volume to run backups with
Duplicity. Performance and redundancy isn't really a big deal and I only
have one link connected to that linux box at this time anyway. How do I
get around the startup script issues connecting on boot?

Thanks!

[Donald Williams]

Re: Startup.  The problem was resolved in 12.10, so you should be fine. 

Re: Backup.  Are you connecting to the live volume?   If you connect two servers to the same volume w/o a cluster file system in place you will end up with a corrupted volume.   Updates on one server won't be seen by the other.    Using a snapshot is the safest way to backup an EQL volume. 

Don 

[Elvar]

On 4/4/2013 10:50 AM, Donald Williams wrote:
> Re: Startup. The problem was resolved in 12.10, so you should be fine.
>
> Re: Backup. Are you connecting to the live volume? If you connect
> two servers to the same volume w/o a cluster file system in place you
> will end up with a corrupted volume. Updates on one server won't be
> seen by the other. Using a snapshot is the safest way to backup an
> EQL volume.
>
> Don
>

I have an appliance that does email archiving and it is using a volume
on the Equallogic to store data. I can't only have the data in one place
though so I'm mounting the partition (ext3) from a local linux server
and using duplicity to back the data up to a remote location over FTPS.
The linux server isn't writing anything to the partition, only reading
from it.

Elvar