From alex.tuxx at gmail.com Mon Mar 11 17:14:51 2013 Content-Type: multipart/mixed; boundary="===============0040619646076350053==" MIME-Version: 1.0 From: Alex Leonhardt To: users at ovirt.org Subject: Re: [Users] iSCSI multipath with EqualLogic SAN Date: Mon, 11 Mar 2013 21:14:47 +0000 Message-ID: <513E4947.4000206@gmail.com> In-Reply-To: 9BE6F493F83A594DA60C45E6A09DC5AC23B775C8@AUSP01DAG0201 --===============0040619646076350053== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------020004050704080007000806 Content-Type: text/plain; charset=3DUTF-8; format=3Dflowed Content-Transfer-Encoding: 8bit I think you should have p1p2 on a different network ;) .. same with the = san, one NIC should/could be on a different network (or probably for = you, the 2nd head should be in a different network?) ... i've got that = working OK with a iSCSI target service on centos and multipath does = everything as expected .. alex On 03/11/2013 04:28 PM, Jonathan Horne wrote: > I finally had some time to work on this again now that I have some more n= odes to work with. > > I am trying to get the ovirt node to log in from more than 1 IP address t= o the Equallogic SAN wthout using dell's HIT-Kit. My test node has these i= nterfaces: > > (all ovirt 3.1, mgmt. and nodes) > Eth0 - 10.32.0.44 - ovritmgmt > Eth1 - several VM IP data VLANs > P1p1 - 10.32.10.44 iscsi network > P1p2 - 10.32.10.64 iscsi network > > My EQ SAN is located at 10.32.10.21. I know there is a ton of issues behi= nd that being the only IP, but right now I have a stranger problem. > > When I ping 10.32.10.21 like this: > > Ping 10.32.10.21 -I 10.32.10.44 > > Tcpdump looking at p1p1 shows pings going as normal from 10.32.10.44 to 1= 0.32.10.21. then I do "ping 10.32.10.21 -I 10.32.10.64" and tcpdump still = shows ping packets going from p1p1 and not from p1p2. Tcpdump shows nothin= g at all on p1p2. > > I don=E2=80=99t understand how multipath can work if all the packets exit= out p1p1 and nothing exits from p1p2? > > At this point im grasping at straws on how to effectively use the equallo= gic SAN with ovirt, as our disk thruput is currently limited to 110mb sec f= rom the single 1gig pipe. I tend to be very quick to believe I am on the w= rong track here. > > Any help or advice is greatly appreciated. > Thanks, > jonathan > > ________________________________ > This is a PRIVATE message. If you are not the intended recipient, please = delete without copying and kindly advise us by e-mail of the mistake in del= ivery. NOTE: Regardless of content, this e-mail shall not operate to bind S= KOPOS to any order or other contract unless pursuant to explicit written ag= reement or government initiative expressly permitting the use of e-mail for= such purpose. > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users --------------020004050704080007000806 Content-Type: text/html; charset=3DUTF-8 Content-Transfer-Encoding: 8bit I think you should have p1p2 on a different network ;) .. same with the san, one NIC should/could be on a different network (or probably for you, the 2nd head should be in a different network?) ... i've got that working OK with a iSCSI target service on centos and multipath does everything as expected ..

alex
=C2=A0

On 03/11/2013 04:28 PM, Jonathan Horne wrote:

I finally had some time to work on this again now that=
 I have some more nodes to work with.

I am trying to get the ovirt node to log in from more than 1 IP address to =
the Equallogic SAN wthout using dell's HIT-Kit.  My test node has these int=
erfaces:

(all ovirt 3.1, mgmt. and nodes)
Eth0 - 10.32.0.44 - ovritmgmt
Eth1 - several VM IP data VLANs
P1p1 - 10.32.10.44 iscsi network
P1p2 - 10.32.10.64 iscsi network

My EQ SAN is located at 10.32.10.21. I know there is a ton of issues behind=
 that being the only IP, but right now I have a stranger problem.

When I ping 10.32.10.21 like this:

Ping 10.32.10.21 -I 10.32.10.44

Tcpdump looking at p1p1 shows pings going as normal from 10.32.10.44 to 10.=
32.10.21.  then I do "ping 10.32.10.21 -I 10.32.10.64" and tcpdump still sh=
ows ping packets going from p1p1 and not from p1p2.  Tcpdump shows nothing =
at all on p1p2.

I don=E2=80=99t understand how multipath can work if all the packets exit o=
ut p1p1 and nothing exits from p1p2?

At this point im grasping at straws on how to effectively use the equallogi=
c SAN with ovirt, as our disk thruput is currently limited to 110mb sec fro=
m the single 1gig pipe.  I tend to be very quick to believe I am on the wro=
ng track here.

Any help or advice is greatly appreciated.
Thanks,
jonathan

________________________________
This is a PRIVATE message. If you are not the intended recipient, please de=
lete without copying and kindly advise us by e-mail of the mistake in deliv=
ery. NOTE: Regardless of content, this e-mail shall not operate to bind SKO=
POS to any order or other contract unless pursuant to explicit written agre=
ement or government initiative expressly permitting the use of e-mail for s=
uch purpose.
_______________________________________________
Users mailing list
Use=
rs(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

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