This is a multi-part message in MIME format. --------------0B32486AFDADAE2F4CB49F09 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit 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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--------------0B32486AFDADAE2F4CB49F09 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit <html> <head> <meta content="text/html; charset=windows-1252" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <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> <fieldset class="mimeAttachmentHeader"></fieldset> <br> <pre wrap="">_______________________________________________ Users mailing list <a class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users@ovirt.org</a> <a class="moz-txt-link-freetext" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a> </pre> </blockquote> <br> </body> </html> --------------0B32486AFDADAE2F4CB49F09--