[ovirt-users] Is it possible to add ISCSI over iser?

Doron Fediuck dfediuck at redhat.com
Tue Sep 30 08:22:40 EDT 2014



----- Original Message -----
> From: "Trey Dockendorf" <treydock at gmail.com>
> To: "Arman Khalatyan" <arm2arm at gmail.com>
> Cc: "users" <users at ovirt.org>
> Sent: Tuesday, September 30, 2014 5:24:27 AM
> Subject: Re: [ovirt-users] Is it possible to add ISCSI over iser?
> 
> Arman,
> 
> One of my storage domains is iSCSI using iSER.  You need the following
> in vdsm.conf:
> 
> [irs]
> iscsi_default_ifaces = iser,default
> 
> I believe the proper way to set that so it's preserved during node
> updates is the following
> 
> # cat /etc/ovirt-host-deploy.conf.d/40-custom-vdsm-config.conf
> [environment:enforce]
> VDSM_CONFIG/irs/iscsi_default_ifaces=str:iser,default
> 
> The filename I believe can be changed, just requires .conf extension
> 
> Once VDSM is configured to use iser you can add the domain in the GUI
> using the IPoIB IP address to initiate iSER.
> 
> ovirtnode01 # iscsiadm -m session
> iser: [3] 192.168.211.245:3260,1 iqn.2014-04.DOMAIN.vmstore1:ovirt-data_iscsi
> 
> - Trey
> 
> On Wed, Sep 24, 2014 at 6:42 AM, Arman Khalatyan <arm2arm at gmail.com> wrote:
> > Hi,
> > I am trying to attach my new storage domain over iser.
> > My server always gets that request is tcp/ip not rdma.
> > Simple work around is login from hosts over iser.
> > Would be good to add a possibility to select the protocol of
> > iscsi:tcp/iser/srp.
> >
> > Thanks,
> > Arman
> >
> > PS
> > for those who was struggling with same trouble:
> > 1) on hosts:
> > add lines in /etc/rdma/rdma.conf
> > # Load iSER module
> > ISER_LOAD=YES
> > 2) service rdma restart (or modprobe ib_iser
> > 3) iscsiadm -m discovery -t st -p 10.10.10.31 -I iser
> > 4) iscsiadm -m node --login
> >
> > 5) check if disks are there
> > iscsiadm -m session -o show
> > lssci
> > [1228:0:0:0] storage IET      Controller       0001  -
> > [1228:0:0:1] disk    IET      VIRTUAL-DISK     0001  /dev/sde
> >  lsblk /dev/sde
> > NAME                                                         MAJ:MIN RM
> > SIZE RO TYPE  MOUNTPOINT
> > sde                                                            8:64   0
> > 36.4T  0 disk
> > ââ100090001 (dm-8)                                           253:8    0
> > 36.4T  0 mpath
> >   ââ18b70b0d--4944--4c73--970d--87a1af353b9f-metadata (dm-9) 253:9    0
> > 512M  0 lvm
> >   ââ18b70b0d--4944--4c73--970d--87a1af353b9f-ids (dm-10)     253:10   0
> > 128M  0 lvm
> >   ââ18b70b0d--4944--4c73--970d--87a1af353b9f-leases (dm-11)  253:11   0
> > 2G  0 lvm
> >   ââ18b70b0d--4944--4c73--970d--87a1af353b9f-outbox (dm-12)  253:12   0
> > 128M  0 lvm
> >   ââ18b70b0d--4944--4c73--970d--87a1af353b9f-inbox (dm-13)   253:13   0
> > 128M  0 lvm
> >   ââ18b70b0d--4944--4c73--970d--87a1af353b9f-master (dm-14)  253:14   0
> > 1G  0 lvm
> >

Thanks for the info, guys.
Does any of you use hosted engine with iSER?


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