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Supporting your virtualization on VMware: advice from the experts.

Do you think you can build and operate virtualization on your own?  


At HP, we’re always thinking of ways to answer questions, address issues and help our customers manage their data centers more effectively and affordably.  For instance, the first HP Expert Chat took place on December 7 and 8. The topic was about VMware technical support.


I must say that the expert Cindy Manderson and the facilitator Dana Gardner made a good show to alert everybody on the need of top level support –both reactive and proactive–  for virtualized environments, especially when they become complex. And that’s coming fast!


For me, a very interesting part of the 1 hour live discussion has been the questions and answers. Customers could ask their questions and get answers in a specific window, as several experts were in the background taking care of all questions. Some of them were discussed after the presentation, and all of them are put in a file that customers can get access to.

Just as an example, here is one question a customer asked during the event, and its answer given live by the experts:


“How should vSphere 5.0 cluster be configured on HP blade servers in 2 or more enclosures, to survive immediate loss of whole enclosure? How to avoid getting error disabled port status in Cisco 3120G Switch (1Gbit Eth ports) for G6 blades (10Gbit Eth embedded NIC) during restart?”


“Your cluster would need to include hosts in both enclosures. Assuming that half of your hosts are in each enclosure you would need to have enough spare capacity to allow all the VMs running on hosts in enclosure A to be restarted on hosts in enclosure B. If 50% spare capacity is too costly then perhaps a resource pool for critical VMs could be configured to assure at least enough space capacity for those VMs to restart.


Regarding the problem with disabled port status. Behavior depends on the NIC card. I think this customer advisory may relate:  


"As a workaround, since all required features are negotiated by the physical layer (PHY) using Clause 73 Auto-Negotiation (AN), Clause 37 AN must be disabled by the switch. The Clause 37 AN can be disabled manually via the switch management application or automatically by determining the link partner that is not using Clause 37 AN. If neither of these options can be used, then the NC522m, NC525m, and NC542m adapter should not be used with the Cisco Catalyst 3020, Cisco Catalyst 3120G, Cisco Catalyst 3120X, or ProCurve 6120G/XG Blade Switch for HP."


Test yourselves; is that the kind of advice that could save you time, effort and risk taking? How do you operate today?  Have you learned anything about running VMs in your own environment that could help our readers find efficiencies?  We’d love to hear about them.  And stay tuned for our next Expert Chat, which I’ll be sure to publicize. 


The replay of the HP Expert Chat event is accessible on line after you register, as well as the Q&A on the same page.


Learn more about HP Always On Support.

Financial Advisory Services | ‎12-15-2011 10:41 AM

Economical concerns are so complex that so many people have little or no knowing of the topic which is the purpose why they are in financial terms trapped.

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About the Author
More than 30 years in Sales and Marketing in IT services business. Currently managing global campaigns for Datacenter Care.

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