Archive for the ‘Tips’ Category

Microsoft 2008 Cluster Bugs

Posted on August 17th, 2011 in Operating Systems, Server, Tips | No Comments »

Went through a marathon troubleshooting with my client for the past 1 week to figure out the reason why a cluster failed in place and it could not easily rebuild back after 1 of the node evicted. We had gone through the process to re image both nodes and rebuild from scratch. Follow exactly the best practices and run through the cluster validation without any error. While we try to form the cluster, the system keep provide an unknown error which do not share much information from log. It just keep telling you that the node is not reachable or unauthorized due to security setting.

After few nights of troubleshooting, I was running out of clue. Came to the sudden, I accidentally search the computer name in AD under the category of Users object group, and I found an user account been created in AD with the same name as we define on the cluster name. I was wondering whether this could caused the confuse to the system. Therefore, I was suggesting to remove the user name temporally as it was not use at the moment and tried to reform the cluster. Guess what, the cluster form up as it needed to be in less than 1 minutes. We were so happy to end the marathon troubleshooting every night well and we were also very pissed off with the bugs we face here.

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Rumours from Blogger about new changes on vSphere 5 license change

Posted on August 2nd, 2011 in Announcement, Tips, vSphere | 1 Comment »

Since the Official launch of VMware vSphere 5, the  hottest topic been discuss in virtualization is all about the new license been implemented by VMware more than what’s new in vSphere 5. After few weeks of complain, discussion and feedback from the users or partner, there are rumours saying that vmware is now ready to revise the license with better capacity limit per CPU sockets.

Here are some of the details to share, which been discuss on the internet frequently and yet to be announced and verified with VMware.

  • VMware vSphere 5 Essentials will give a 24GB vRAM entitlement
  • VMware vSphere 5 Essentials Plus will give a 32GB vRAM entitlement
  • Max vRAM in Essentials / Essentials Plus will be maxed at 192GB vRAM
  • VMware vSphere 5 Standard vRAM entitlement has changed to 32GB
  • VMware vSphere 5 Enterprise vRAM entitlement will be doubled to 64GB
  • VMware vSphere 5 Enterprise Plus vRAM entitlement will be doubled to 96GB

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VMware vSphere 5 License Comparison Chart

Posted on July 18th, 2011 in Tips, vCenter, vSphere | 4 Comments »

As of 12 July 2011, VMware officially launched the 5.0 release of vSphere. VMware vSphere 5 introduced an impressive number of new features and new licensing format.

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Confused Explaination from VMware about New License Scheme on vSphere 5

Posted on July 16th, 2011 in Announcement, Tips | No Comments »

After the surprise revise new License Scheme in vSphere 5, VMware had started to worry the decision of the so call FLEXIBLE offering to their client, which had received large numbers of users’ negative reaction for it. If you perform the calculation carefully, you will realize they require 30% more than what you use to pay previously, in some cases it could even double the software cost and maintenance cost you need to pay to VMWare for upgrading to vSphere 5.

While I read around a lot of the comment, I found this post from official VMware Website which try to SPIN the reader around.

Understanding the vSphere 5 vRAM Licensing Model

If you are experience virtualization users, you will realize whatever in post is purely to defend the decision been made and continue to spin the story around. He is right that they did not cap you the physical memory/CPU limit per server, but on VRAM. If you have a 2 CPU sockets server today with 10 Cores each and you want to run with 256GB memory per host or even higher number of memory, you will end up require 4 sockets Enterprise plus license to entitle for only 192 VRAM allocation to the virtual machines pool you have, and the rest of it is stay there for HA or so on. If you want to use more than that, please buy more license from VMWare. Old days with memory over commit and over provision are gone. as long as you do not have enough software licenses. Well, beside saying this, you may still able to use the memory over provision or over commit while there is HA kick in due to any physical host failure.

Honestly speaking, if VMWare are confident that customer will continue the journey with them, what is the point of telling public that the so call FLEXIBLE, NO LIMIT or any spinning story that could mislead the reader. There is an open market for every product in virtualization today, there will be users choose to go VMWare still and some may think to switch to others too.

I do not see any problem for the software company to create restriction on their software, but I do mind the mislead information could confuse the users and readers. Is still a choice of for user to decide whether it is worth to buy the product.

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VMware vSphere 5 may not be the ideal platform for Matured vSphere 4.1 Users

Posted on July 15th, 2011 in Tips | 1 Comment »

With the surprise of new license structure change from VMware, it had impacted large number of the existing customers which may end up required to double or triple their existing CPU license if they require to upgrade to vSphere 5. This was mainly cost by the cap happen per CPU sockets which is only 48GB each even for Enterprise plus. There are many users start to evaluate alternative solution such as HyperV, Citrix Xen and KVM now due to the large impact on software cost may be added to the existing environment.

Imagine you have a 2 way server with 192GB memory now, you will require to purchase 4 sockets license to entitle the VRAM for 192GB. Honestly speaking, the new license structure doesn’t sound to be green and really make the existing users getting harder to defend the decision to stick with VMware. VMware are not promoting high consolidation anymore while force you to buy more license or consider a smaller server to be deployed in your infrastructure.  No matter how they spin about the flexible licensing scheme, I think many smart users feel upset with the new model they released. Providing a choice, there will be many users choose to remain at version 4.1 without upgrade and start looking into option as HyperV, XEN or KVM. VMware are opening bigger door to their competitor to challenge their market share.

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