9:41 a.m.
hi,
i'm trying to use iSCSI multipathing for a LUN shared by a Hitachi SAN.
i can't figure out how this is supposed to work, maybe my setup isn't
applicable at all...
our storage admin shared the same LUN for me on two targets, which are
located in two logical networks connected to different switches (i asked
him to do so). on the oVirt hypervisor side there is only one bonded
interface for storage traffic, so i configured two VLAN interfaces
located in these networks on the bond interface.
now i create the storage domain logging in to one of the targets
connecting through its logical network. when i try to create a "second"
storage domain for the same LUN logging in to the second target, oVirt
tells me "LUN is already in use". i understand this, but now i can't
configure an oVirt "iSCSI Bond" in any way.
how is this supposed to work?
right now the only working setup i can think of would be an iSCSI target
that uses a redundant bond interface (with only one IP addresss) to
which my hypervisors connect through different routed networks (using
either dedicated network cards or vlan interfaces). is that correct?
i feel like i'm missing something, but i couldn't find any examples for
real world IP setups for iSCSI multipathing.
thanks for explaining
matthias
10:47 a.m.
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I've found this on RHV manual, which should apply to oVirt:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualiza=
tion/3.5/html/Administration_Guide/sect-Preparing_and_Adding_Block_Storage.=
html#Configuring_iSCSI_Multipathing
Let me know if works, because I'm considering a migration to oVirt and I wi=
ll have the same issue.
V.
Sent from my iPhone
On 3 Jul 2017, at 11:42, Matthias Leopold <matthias.leopold(a)meduniwien.ac.a=
t<mailto:matthias.leopold@meduniwien.ac.at>> wrote:
hi,
i'm trying to use iSCSI multipathing for a LUN shared by a Hitachi SAN. i c=
an't figure out how this is supposed to work, maybe my setup isn't applicab=
le at all...
our storage admin shared the same LUN for me on two targets, which are loca=
ted in two logical networks connected to different switches (i asked him to=
do so). on the oVirt hypervisor side there is only one bonded interface fo=
r storage traffic, so i configured two VLAN interfaces located in these net=
works on the bond interface.
now i create the storage domain logging in to one of the targets connecting=
through its logical network. when i try to create a "second" storage domai=
n for the same LUN logging in to the second target, oVirt tells me "LUN is =
already in use". i understand this, but now i can't configure an oVirt
"iSC=
SI Bond" in any way.
how is this supposed to work?
right now the only working setup i can think of would be an iSCSI target th=
at uses a redundant bond interface (with only one IP addresss) to which my =
hypervisors connect through different routed networks (using either dedicat=
ed network cards or vlan interfaces). is that correct?
i feel like i'm missing something, but i couldn't find any examples for rea=
l world IP setups for iSCSI multipathing.
thanks for explaining
matthias
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Users mailing list
Users@ovirt.org<mailto:Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
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<html <head <meta http-equiv=3D"Content-Type"
content=3D"text/html; charset=3Diso-8859-=
1" </head <body
dir=3D"auto" <div>I've found this on
RHV manual, which should apply to oVirt:</div <div
id=3D"AppleMailSignature"><br
</div <div
id=3D"AppleMailSignature"><a
href=3D"https://access.redhat.com/documen=
tation/en-US/Red_Hat_Enterprise_Virtualization/3.5/html/Administration_Guid=
e/sect-Preparing_and_Adding_Block_Storage.html#Configuring_iSCSI_Multipathi=
ng">https://access.redhat.com/documentation/en-US/Red_Hat_Enterpr...
lization/3.5/html/Administration_Guide/sect-Preparing_and_Adding_Block_Stor=
age.html#Configuring_iSCSI_Multipathing</a></div <div
id=3D"AppleMailSignature"><br
</div <div
id=3D"AppleMailSignature">Let me know if works, because I'm considerin=
g a migration to oVirt and I will have the same issue.</div <div id=3D"AppleMailSignature"><br </div <div
id=3D"AppleMailSignature">V.<br
<br Sent from my iPhone</div <div><br On 3 Jul
2017, at 11:42, Matthias Leopold <<a href=3D"mailto:matthias.le=
opold@meduniwien.ac.at">matthias.leopold(a)meduniwien.ac.at</a>&gt;
wrote:<br=
<br </div <blockquote type=3D"cite" <div><span>hi,</span><br <span></span><br
<span>i'm trying to use iSCSI multipathing for a LUN shared by a Hitachi
SA=
N. i can't figure out how this is supposed to work, maybe my setup isn't ap=
plicable at all...</span><br
<span></span><br
<span>our storage admin shared the same LUN for me on two targets, which ar=
e located in two logical networks connected to different switches (i asked =
him to do so). on the oVirt hypervisor side there is only one bonded interf=
ace for storage traffic, so i configured
two VLAN interfaces located in these networks on the bond interface.</span=
><br <span></span><br <span>now i create the storage domain logging in to one
of the targets conn=
ecting through its logical network. when i try to create a "second&quo=
t; storage domain for the same LUN logging in to the second target, oVirt t=
ells me "LUN is already in use". i understand
this, but now i can't configure an oVirt "iSCSI Bond" in any way=
.</span><br <span></span><br <span>how is this supposed to
work?</span><br <span>right now the only
working setup i can think of would be an iSCSI tar=
get that uses a redundant bond interface (with only one IP addresss) to whi=
ch my hypervisors connect through different routed networks (using either d=
edicated network cards or vlan interfaces).
is that correct?</span><br
<span></span><br
<span>i feel like i'm missing something, but i couldn't find any
examples f=
or real world IP setups for iSCSI multipathing.</span><br <span></span><br
<span>thanks for explaining</span><br
<span>matthias</span><br
<span>_______________________________________________</span><br <span>Users mailing list</span><br <span><a
href=3D"mailto:Users@ovirt.org">Users@ovirt.org</a></span><br <span><a
href=3D"http://lists.ovirt.org/mailman/listinfo/users">http:...
s.ovirt.org/mailman/listinfo/users</a></span><br </div
</blockquote </body </html
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