?
Solved

Cisco UCS 5108 to Fabric Interconnect from catalyst connection to EMC VNX direct

Posted on 2013-11-13
7
Medium Priority
?
1,191 Views
Last Modified: 2013-11-21
Hello EE,  we currently have a Cisco UCS 5108 with two Fabric Interconnects.  Currently this connects to a catalyst switch as we had stand alone hosts that needed to be able to iSCSI to our EMC VNX so we couldn't directly connect the EMC to the Fabric Interconnect.  Now that stand alone server is gone.  Is it best practice to directly connect the EMC to the Fabric Interconnect and if so any details on how to go about this and impact it may have?
0
Comment
Question by:bergquistcompany
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
  • 2
7 Comments
 
LVL 32

Expert Comment

by:Rodney Barnhardt
ID: 39647648
How are you connecting, iSCSI? Personally, we do all fiber and router through a Cisco 6548 in order to do zoning.
0
 

Author Comment

by:bergquistcompany
ID: 39649073
Yes iSCSI and since we had 2 stand alone servers targeting the EMC we had to connect through the catalyst switch.  Now that we are all virtual on the UCS 5108 we can connect direct to the Fabric Interconnect but I'm trying to find if others connect direct or not and pros/cons
0
 
LVL 32

Expert Comment

by:Rodney Barnhardt
ID: 39649136
Sorry. I have only worked with fiber connections, no iSCSI, so my knowledge on iSCSI is limited.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 30

Accepted Solution

by:
Duncan Meyers earned 2000 total points
ID: 39649536
You can connect the VNX array to the UCS Fabric Interconnect ports - nop problem. But there are two things you must be aware of:
 - you will use two port licenses on the UCS FI (two per FI and per VNX Storage Processor)
 - you will not be able to access the array from anywhere upstream of the FIs so if you want to connect physical hosts or a backup server that's outside UCS, then you'll be out of luck.

The cost of Fabric Interconnect licenses is probably the most compelling reason not to do it. You may not need the licenses now, but you certainly will if you have to add a chassis.
0
 

Author Comment

by:bergquistcompany
ID: 39651676
@ meyersd - Can you elaborate on the licenses as we are looking at adding a chassis so that would be very helpful to have clear.  Adding it I use 2 port licenses thus I am guessing I have limited licenses and how many does the new chassis need will I likely need more ports?
0
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 39652667
Whether or not you'll need more ports depends on your existing UCS config. Typically, youll use 2 ports per FI for every new chassis for normal workloads, or 4 ports per FI per chassis if you have very high bandwidth needs. Remember that one FI port = one license. The number of default licenses depends on which FIs you have: 6120, 6140, 6248 or 6296. You may have enough default port licenses for what you want to do.  Can you give me more information about your UCS - what FIs, how many chassis, how many blades, what uplinks you're using to the network core.

Given the costs and restrictions around connecting your array directly to UCS, I'd be inclined to leave the array connected exactly as it is.
0
 
LVL 30

Expert Comment

by:Duncan Meyers
ID: 39667832
Thanks! Glad I could help.
0

Featured Post

Automating Your MSP Business

The road to profitability.
Delivering superior services is key to ensuring customer satisfaction and the consequent long-term relationships that enable MSPs to lock in predictable, recurring revenue. What's the best way to deliver superior service? One word: automation.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The business world is becoming increasingly integrated with tech. It’s not just for a select few anymore — but what about if you have a small business? It may be easier than you think to integrate technology into your small business, and it’s likely…
Article by: evilrix
Looking for a way to avoid searching through large data sets for data that doesn't exist? A Bloom Filter might be what you need. This data structure is a probabilistic filter that allows you to avoid unnecessary searches when you know the data defin…
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…
This Micro Tutorial walks you through using a remote console to access a server and install ESXi 5.1. This example is showing remote access and installation using a Dell server. The hypervisor is the very first component of your virtual infrastructu…

650 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question