Saturday, June 9, 2018

[lunar.lab] NSX-T Deploy & Initial Configuration


Sunday, May 27, 2018

vSAN Effective Capacity - Quick and Dirty Sizer Tool

Found this online tool to quickly approximate how much datastore capacity you can get from a certain number of vSAN hosts with certain configuration. I think this is very useful in the case where you already have certain number of physical hosts with vSAN compatible disks, and you want to determine how much capacity you can get from it, and the capacity of cache disk you need to provide to fulfil the 10% recommendation of cache capacity compare to consumed storage (reference). In my experience, I have seen couple of customers where they already have considerably new server hardware with vSAN compatible components where they want to see what they will get if they use vSAN. Please note that VMware has official vSAN Sizing Calculator where you can get recommendation of the hardware specification you need to provide to accommodate certain number of workloads (VMs).

Saturday, May 12, 2018

vSphere 5.5 End of General Support Reminder

Maintain Full Level of Support by Upgrading Your vSphere Environment

In 2016 I wrote a note regarding vSphere upgrade because a lot of my customer at that time was doing upgrade due to vSphere 5.1 EoGS (End of General Support) phase. Well, it’s 2018, and this time you may already aware that vSphere 5.5 will enter EoGS phase in 19 September 2018. Which means, if you still have ESXi hosts 5.5 and/or vCenter Server 5.5, you’ll need to upgrade them in order to maintain your level of full support and subscription services as referenced here.

Sunday, May 6, 2018

Maximum Supported CPU on Windows Server 2003

Even though Windows Server 2003 has gone into end of support since July 2015, I still find their existence in my customer environment. Last week, a performance issue raised by one of my customer, where it related with application running on Windows Server 2003. The application just migrated from physical to virtual about 2 weeks before the application team observed slower performance during end of month process. When migrated, they changed the configuration from 2 CPU socket x 4 cores/socket into 4 CPU vSocket x 4 vCores/vSocket. Related to that change, my first thought, do we hit any maximum CPU limit? What is the maximum CPU on Windows Server 2003? This article is a self note about maximum CPU supported on Windows Server 2003.

Remember that Windows Server 2003 released in the era where the standard is single core CPU. Looking at the official document from Microsoft such as this document shows the supported Symmetric Multiprocessing (SMP) each edition of Windows Server 2003. For instance, Windows Server 2003 Standard Edition support 4-way SMP. Now the question is what’s defined as 4-way SMP? I found this VMware kb article which says that 4-way SMP means 4 CPU socket (or 4 vSocket in vSphere environment).

Thursday, January 25, 2018

Build a Case for Infrastructure & Operation Automation Initiative

This post is part of blog post series focusing on how a company might kickstart their automation or cloud journey.
Part 1: Improve IT Service Delivery Quality with Automation
Part 2: Build a Case for Infrastructure & Operation Automation Initiative (this post)

Couple of days ago my newsfeed brought me to this paper from Gartner with title “How to Measure the Potential Value of Your I&O Automation Initiatives”. You may get access to this publication freely through this link. I found this paper is really interesting as it greatly summarized what I always try to told my customer when they want to start their automation or cloud journey. On my previous post Improve IT Service Delivery Quality with Automation, I highlighted some use cases taken by some company to kick start their automation journey, which happened to be aligned with what explained in this Gartner’s publication.

What initially caught my attention and makes me read the whole paper was the recommendations I quoted below:
I&O leaders who are optimizing operations and need to show the value of their automation spend should:
  • Justify I&O automation initiatives by focusing first on efficiency improvements in labor usage and on effectiveness gains in quality, consistency, agility and risk reduction.

Friday, December 29, 2017

Improve IT Service Delivery Quality with Automation

This post is part of blog post series focusing on how a company might kickstart their automation or cloud journey.
Part 1: Improve IT Service Delivery Quality with Automation (this post)
Part 2: Build a Case for Infrastructure & Operation Automation Initiative

I delivered a session during VMware vForum 2017 Indonesia back in November 2017 about how a company can kick start their automation journey and get the value from it. Automation itself is a very extensive topic and one should choose what to automate carefully. IMO, it should start with repetitive tasks which will bring value to business if automated. Begin with something that is easy to automate, and along the journey, adds more tasks to further complete what requires to deliver a service. Quick wins built confidence. Do not try to automate everything in one go, as it will be complex, costly, and give you headache in supporting it. This post is a rewrite what delivered during my vForum 2017 Indonesia session, which would like to give ideas on where to start and what challenges it will solve by doing it.

There are 4 use cases that I presented:

  • Accelerate delivery and improve consistency of application environments
  • Manage VM sprawl by automated lifecycle enforcement
  • Providing secure access to 3rd party vendor
  • Continuous Delivery for apps and SDDC

Below I try to explain on challenges that each use cases try to solve, and how VMware can solve that challenges. The solution mainly powered by VMware vRealize Automation.

Tuesday, December 26, 2017

#NSXUenak: A Testimony from An NSX User

One of my customer spoke in a customer testimony session during VMware vForum 2017 held at Jakarta, Indonesia back in November 2017. One word he kept using to describe his satisfaction in using NSX is UENAK. Uenak, is some kind of an accentuate expression derived from the word enak, which is Bahasa Indonesia for good, comfortable, or pleasant. During his more or less 10 minutes session, he mentioned uenak for at least 5 times to express his feeling after using NSX. This post is a rewrite of what he mentioned during the session.

NSX uenak because it helps on the scalability. Distributed router and distributed firewall move east-west traffic from what it used to be centralized in physical device (core switch or firewall) to be processed in the transport layer (eg. the ESXi hosts). It is important to them as the nature of their business requires flexible scalability. With NSX (and vSphere), every time they add new hosts, they not only add compute (CPU and RAM) capacity, but also network capacity (in term of bandwidth and additional power to process traffic routing and segmentation/isolation.