iSCSI best practice for UCS environment?

[motenoob1]

Hi,

I am looking for information on the best practice setup for iSCSI setup with UCS (particularly an EMC VNX back end system).  Currently we have our A and B links into one Cisco 3850 stack, and A and B storage uplinks plugged into a separate 3850 stack for iSCSI traffic.  We found that LAN traffic would attempt to send traffic to the iSCSI uplinks.  All network VLANs were configured at the root level and not specific to A or B side.  Do VLANs need to be moved to A/B side and bound to the switch port channel on A and B?

[Walter Dey]

see e.g.

http://dudewheresmycloud.com/pdf/VMware-vSphere-5-on-Cisco-UCS-and-EMC-VNXe.pdf

https://www.ciscolive2014.com/connect/sessionDetail.ww?SESSION_ID=1623

https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=4183

https://www.youtube.com/watch?v=hkCxUfesavE

Good luck

Walter.

[Saurabh Kothari]

Hello,

if you are looking for a configuraton example.

this CISCO doc should help:

http://www.cisco.com/c/en/us/support/docs/servers-unified-computing/ucs-manager/116003-iscsi-ucs-config-00.html

Regards,

Saurabh

[dvallyon01]

Hi motenoob1,

In short yes ths will happen by design as described. You will need to configure LAN pin groups to engineer the flow of traffic. Basically ensuring only the SAN traffic goes via the SAN switches and the LAN traffic goes via the LAN switches.

Daren