Ok. Does the other login command work for you or does the use of the
default iser iface work?


On 10/13/2014 02:24 PM, Moussa Ba wrote:
> The problem is that I am using one target/LUN per port as I am sharing
> PCIe SSDs backed LUNS with high IOPS. Basically, this was the
> recommendation from Mellanox such that I have one session per port.  In
> my testing when it was working, I was getting about 800KIOPS for 8
> sessions.  I do need to be able to use different ports.
> 
> Thank you.
> 
> On Monday, October 13, 2014 12:13:40 PM UTC-7, Mike Christie wrote:
> 
>     Another workaround, if possible on your setup, is to use port 3260.
>     Looks like there is a bug in the iscsiadm code when the port is not
>     3260.
> 
> 
> 
>     On 10/13/2014 02:12 PM, Mike Christie wrote:
>     > Ok. I am looking into it now. As a temp workaround you can do
>     >
>     > iscsiadm -m node -l
>     >
>     > or
>     >
>     > iscsiadm -m node -T yourtarget -l
>     >
>     > On 10/13/2014 12:45 PM, Moussa Ba wrote:
>     >> See commands below with output in bold. A discovery does generate a
>     >> portal.  Note however, that the discovery is going over tcp not
>     iser. I
>     >> follow the discovery with an update to the interface to change the
>     >> transport_name to iser followed by a login attempt.  It is the login
>     >> attempt that returns a iscsiadm:No records found.
>     >>
>     >>
>     >> #iscsiadm -m iface -I iface0 --op=new
>     >> *New interface iface0 added*
>     >> #iscsiadm -m discovery -t st -p 192.168.111.100:3261
>     <http://192.168.111.100:3261> -I iface0
>     >> *192.168.111.100:3261 <http://192.168.111.100:3261>,1
>     >> iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.0fa6846566d9*
>     >> #iscsiadm -m iface -I iface0 -o update -n iface.transport_name -v
>     iser
>     >> *iface0 updated.*
>     >> #iscsiadm -m node -T
>     >> iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.0fa6846566d9 -I
>     iface0 -p
>     >> 192.168.111.100:3261 <http://192.168.111.100:3261> -l
>     >> *iscsiadm: No records found*
>     >> *
>     >> *
>     >>
>     >>
>     >> On Saturday, October 11, 2014 4:26:06 PM UTC-7, Mike Christie wrote:
>     >>
>     >>
>     >>     On Oct 10, 2014, at 5:06 PM, Moussa Ba <[email protected]
>     >>     <javascript:>> wrote:
>     >>
>     >>     > I have a target running CentOS 7 with LIO.  I am using iser
>     >>     transport via Mellanox Connect-X 3 VPI cards.  I have been
>     having
>     >>     difficulties connecting via an initiator running CentOS 7. My
>     setup
>     >>     is essentially a one target/LUN/PORT.
>     >>     >
>     >>     >  o- iscsi
>     >>    
>     
> ............................................................................................................
> 
>     >>     [Targets: 1]
>     >>     >   | o-
>     iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.0fa6846566d9
>     >>     .......................................................
>     [TPGs: 1]
>     >>     >   |   o- tpg1
>     >>    
>     
> ..................................................................................................
> 
>     >>     [gen-acls, no-auth]
>     >>     >   |     o- acls
>     >>    
>     
> ..........................................................................................................
> 
>     >>     [ACLs: 1]
>     >>     >   |     | o-
>     >>     iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.0fa6846566d9
>     >>     .......................................... [Mapped LUNs: 1]
>     >>     >   |     |   o- mapped_lun0
>     >>     .............................................................
>     [lun0
>     >>     block/vg-targetd:test_volume_02 (rw)]
>     >>     >   |     o- luns
>     >>    
>     
> ..........................................................................................................
> 
>     >>     [LUNs: 1]
>     >>     >   |     | o- lun0
>     ...............................................
>     >>     [block/vg-targetd:test_volume_02
>     (/dev/vg-targetd/test_volume_02)]
>     >>     >   |     o- portals
>     >>    
>     
> ....................................................................................................
> 
>     >>     [Portals: 1]
>     >>     >   |       o- 192.168.111.100:3261
>     <http://192.168.111.100:3261> <http://192.168.111.100:3261>
>     >>    
>     
> ...........................................................................................
> 
>     >>     [iser]
>     >>     >
>     >>     >
>     >>     > Target Kernel: 3.16.3-1.el7.elrepo
>     >>     > Initiator Kernel:3.16.3-1.el7.elrepo
>     >>     >
>     >>     > iscsiadm: Compiled from git repository.  Latest commit
>     >>     >
>     >>     > commit 76a441ba0dc0071a19daeac456aa898889437efd
>     >>     > Author: Hannes Reinecke <.....>
>     >>     > Date:   Fri Sep 12 14:42:01 2014 -0700
>     >>     >     Added new util script to aid in CNA setup
>     >>     >    
>     >>     >
>     >>     >
>     >>     > Here is my flow:
>     >>     >
>     >>     > iscsiadm -m iface -I iface0 --op=new
>     >>     > iscsiadm -m iface -I iface0 -o update -n
>     iface.transport_name -v iser
>     >>     > iscsiadm -m discovery -t st -p 192.168.111.100:3261
>     <http://192.168.111.100:3261>
>     >>     <http://192.168.111.100:3261> -I iface0
>     >>     >
>     >>     > Output is:
>     >>     >
>     >>     > New interface iface0 added
>     >>     > 192.168.111.100:3261 <http://192.168.111.100:3261>
>     <http://192.168.111.100:3261>,1
>     >>     iqn.2003-01.org.linux-iscsi.localhost.x8664:sn.0fa6846566d9
>     >>     > iface0 updated.
>     >>     > iscsiadm: No records found
>     >>     >
>     >>
>     >>     The above is kinda hard to read, because I am not sure what
>     output
>     >>     goes with what command.
>     >>
>     >>     Before you ran the discovery command did you have some portals
>     >>     discovered? When you ran the discovery command did it fail to
>     find
>     >>     any portals? Is that what the last no records line is from?
>     >>
>     >>     Could you tar up /etc/iscsi and send it to me, so I can try
>     running
>     >>     iscsiadm here and debug it.
>     >>
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