Thanks for the info Stephan. I'm taking your response into
consideration and will most likely NOT go forward with this based on
your response, as well as Oracle's response to this same type of
question. They seemed to believe that performance may be impacted.
1) However, before I completely ditch the idea, does anyone know if
this is even possible? -- that is, using linux software bridges via
the `brctl` command.
2) When you were using dedicated iSCSI NICS were you just connecting
to the sessions from the dom0 and then passing the raw device through
to the domU's as a physical device? I guess that is another way of
doing this, but then I have to manage which blk devices are used for
physical access to the domU and which ones are actually being mounted
on the dom0 (for Oracle VM, these are mounted under /OVS/)
Thanks,
Joe
On Oct 6, 2009, at 11:41 AM, netz-haut - stephan seitz wrote:
Hi there,
I'ld recommend not to export LUNs directly to domU's. We did this on
a few dom0 with dedicated
iSCSI NICs. Running about 40-60 domUs concurrently results in flaky
iSCSI traffic and random loss of iSCSI sessions. We're now using
multipathed CLVM LV's without any problem.
Cheers,
Stephan
-Original Message-
From: open-iscsi@googlegroups.com [mailto:open-
is...@googlegroups.com]
On Behalf Of Hoot, Joseph
Sent: Sunday, October 04, 2009 8:56 PM
To: open-iscsi@googlegroups.com
Subject: Re: iscsi through linux software bridge?
Has anyone done this? I can't seem to get it to work. The reason
that I want to plug (2) physical ethernet cards to a linux software
bridge, is because then I can have my Xen dom0 mount its own iSCSI
volumes as well as pass-through additional iscsi traffic out to the
guest vm's. This will allow for me to take advantage of EqualLogic's
thin provisioning.
On Oct 1, 2009, at 1:56 PM, Hoot, Joseph wrote:
I dont' think I sent this properly to the list. This is my second
attempt :)
Has anyone been successful in setting up a linux software bridge and
loging into an iscsi target?
I've setup the following:
Linux Target:
==
eth2 - 192.168.30.1
eth3 - 192.168.30.2
Linux Client:
==
eth2 - BRIDGE=iscsi0
iscsi0 - TYPE=Bridge
iscsi0:1 - 192.168.30.3
eth3 - BRIDGE=iscsi1
iscsi1 - TYPE=Bridge
iscsi1:1 - 192.168.30.4
I can discover all targets. But when I go to log into them, it
fails. If I break the software bridges and just leave the IP's on
eth2 and eth3, they can login and discover just fine.
Thanks
Joe
==
Joseph R. Hoot
Lead System Programmer/Analyst
(w) 716-878-4832
(c) 716-759-HOOT
joe.h...@itec.suny.edu
==
Mit freundlichen Gruessen
--
Stephan Seitz
Senior System Administrator
*netz-haut* e.K.
multimediale kommunikation
zweierweg 22
97074 würzburg
fon: +49 931 2876247
fax: +49 931 2876248
web: http://www.netz-haut.de/
registriergericht: amtsgericht würzburg, hra 5054
==
Joseph R. Hoot
Lead System Programmer/Analyst
(w) 716-878-4832
(c) 716-759-HOOT
joe.h...@itec.suny.edu
==
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