7:45 a.m.
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Hello Colin,
I know well all the equipment you have in your hands as I used to work
with these during a long time. Great stuff I can say.
All seems Ok from what you describe, except the iSCSI network which
should not be a bond, but two independent vlans (and subnets) using
iSCSI multipath. Bond works, but it's not the recommended setup for
these scenarios.
Fernando
On 24/06/2016 22:12, Colin Coe wrote:
Hi all
We run four RHEV datacenters, two PROD, one DEV and one
TEST/Training. They are all working OK but I'd like a definitive
answer on how I should be configuring the networking side as I'm
pretty sure we're getting sub-optimal networking performance.
All datacenters are housed in HP C7000 Blade enclosures. The PROD
datacenters use HP 4730 iSCSI SAN clusters, each datacenter has a
cluster of two 4730s. These are configured RAID5 internally with
NRAID1. The DEV and TEST datacenters are using P4500 iSCSI SANs and
each datacenter has a cluster of three P4500s configured with RAID10
internally and NRAID5.
The HP C7000 each have two Flex10/10D interconnect modules configured
in a redundant ring so that we can upgrade the interconnects without
dropping network connectivity to the infrastructure. We use fat RHEL-H
7.2 hypervisors (HP BL460) and these are all configured with six
network interfaces:
- eno1 and eno2 are bond0 which is the rhevm interface
- eno3 and eno4 are bond1 and all the VM VLANs are trunked over this
bond using 802.1q
- eno5 and eno6 are bond2 and dedicated to iSCSI traffic
Is this the "correct" way to do this? If not, what should I be doing
instead?
Thanks
CC
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<p>Hello Colin,</p>
<p>I know well all the equipment you have in your hands as I used to
work with these during a long time. Great stuff I can say.</p>
<p>All seems Ok from what you describe, except the iSCSI network
which should not be a bond, but two independent vlans (and
subnets) using iSCSI multipath. Bond works, but it's not the
recommended setup for these scenarios.</p>
<p>Fernando<br>
</p>
<div class="moz-cite-prefix">On 24/06/2016 22:12, Colin Coe
wrote:<br>
</div>
<blockquote
cite="mid:CANvHAxT8jgJVLQnbMuX==pYtRo88ut-a7TBf47-1Jgv4uJ1yiQ@mail.gmail.com"
type="cite">
<div dir="ltr">Hi all
<div><br>
</div>
<div>We run four RHEV datacenters, two PROD, one DEV and one
TEST/Training. They are all working OK but I'd like a
definitive answer on how I should be configuring the
networking side as I'm pretty sure we're getting sub-optimal
networking performance.</div>
<div><br>
</div>
<div>All datacenters are housed in HP C7000 Blade enclosures.
The PROD datacenters use HP 4730 iSCSI SAN clusters, each
datacenter has a cluster of two 4730s. These are configured
RAID5 internally with NRAID1. The DEV and TEST datacenters are
using P4500 iSCSI SANs and each datacenter has a cluster of
three P4500s configured with RAID10 internally and NRAID5.</div>
<div><br>
</div>
<div>The HP C7000 each have two Flex10/10D interconnect modules
configured in a redundant ring so that we can upgrade the
interconnects without dropping network connectivity to the
infrastructure. We use fat RHEL-H 7.2 hypervisors (HP BL460)
and these are all configured with six network interfaces:</div>
<div>- eno1 and eno2 are bond0 which is the rhevm interface</div>
<div>- eno3 and eno4 are bond1 and all the VM VLANs are trunked
over this bond using 802.1q</div>
<div>- eno5 and eno6 are bond2 and dedicated to iSCSI traffic</div>
<div><br>
</div>
<div>Is this the "correct" way to do this? If not, what should
I be doing instead?</div>
<div><br>
</div>
<div>Thanks</div>
<div><br>
</div>
<div>CC</div>
</div>
<br>
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href="http://lists.ovirt.org/mailman/listinfo/users">http://...
</pre>
</blockquote>
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