Category Archives: Uncategorized

Disable SMB2 on a VNX from @nfritsch

Thanks for sharing Nick, I have a lot more EMC in my future (starting Tuesday!).

VCAP-DCD practice design by @GreggRobertson5

Great sample company scenario by Gregg Robertson for those preparing for their VCAP-DCD.

TheSaffaGeek

As some people may know I am currently preparing to re-take my VCAP5-DCD and I have reached the point in my preparations now where I am doing mock designs and also going through the labs from the VMware Design Workshop and so I thought I would follow the same idea and start creating a mock customer design scenario and also put down the same vein of questions I am being asked from the design workshop labs and hopefully if people are interested they can use it, write down what design choices,the justifications for these  choices and the impacts these choices create on the rest of the design and hopefully everyone will learn from this. Below is a company profile that I made up and I also used some ideas from a scenario Matt Mould one of my Xtravirt colleagues sent me as few months back:

Company Profile
•    Safe &…

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Example architectural decision-network IO control shareslimits for ESXi host using ip storage via Josh Odgers (@josh_odgers)

Another in a great series by Josh Odgers

CloudXC

Problem Statement

With 10GB connections becoming the norm, ESXi hosts will generally have less physical connections than in the past where 1Gb was generally used, but more bandwidth per connection (and in total) than a host with 1GB NICs.

In this case, the hosts have only to 2 x 10GB NICs and the design needs to cater for all traffic (including IP storage) for the ESXi hosts.

The design needs to ensure all types of traffic have sufficient burst and sustained bandwidth for all traffic types without significantly negatively impacting other types of traffic.

How can this be achieved?

Assumptions

1. No additional Network cards (1gb or 10gb) can be supported
2. vSphere 5.1
3. Multi-NIC vMotion is desired

Constraints

1. Two (2) x 10GB NICs

Motivation

1. Ensure IP Storage (NFS) performance is optimal
2.Ensure vMotion activities (including a host entering maintenance mode) can be performed in a timely…

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Hidden VNXe Stats

Great post thanks for the write up

Henriwithani

The latest Operating Environment upgrades have already brought some improvements to the statistics that are shown through the Unisphere GUI. The first VNXe OE that I worked with was showing only CPU statistics. Then along with update 2.1.0 Network Activity and Volume Activity statistics came available. I was still hoping to get some more statistics. IOps and latency graphs would have been nice additions. So I did some digging and found out that there is actually lots of statistics parameters that VNXe gathers but those are just stored in the database, maybe for support purposes.

Where is the data stored?

When logging in to the VNXe via SSH using service account and listing the content of the folder /EMC/backend/perf_stats you will see that there are several db-files in that folder.

Now when opening the file with notepad it is quite clear what kind of databases those are:

How to read…

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vSphere 5.1 syslog collector sum up via @silver_chen_au

Great write up

GeekSilver's Blog

It’s shame that it took me 2 hours to find out why my Syslog Collector is not working. But I would like to share my experience with everyone including how to debug it.

Syslog collector has two parts.

Part running on vCenter

 

Syslog Collector must be installed first.

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It is very important to configure your firewall so your syslog can go through.

the Syslog collector can use 3 different protocol. TCP,UDP,SSL. You can enable all of them.

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make sure you have space for this log collector

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that’s will install plug-in directly into your vCenter.

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Feel free to use your DOMAIN/SERVICE_ACCOUNT to replace local administrator. But you need to make sure that service_account has local admin rights first.

By using different account will make better view in the TASK Manager to see how much memory it consumes.

 

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You can replace SSL certificate with local CA certificate if you really…

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vCenter Server Appliance. Part 1 – Configuration and deployment via @jreypo

Juanma's Blog

With vSphere 5 VMware has released the vCenter Server Appliance, or VCSA, a linux based alternative to the classic Windows vCenter. During the next three articles I will detail how to deploy and configure the VCSA, the vCenter additional services and how to manage the embedded database.

– VCSA feature and limitations

The VCSA is a SuSE Linux Enterprise Server 11 64-bit virtual machine with the vCenter Server software and its associated services pre-installed. These services include:

  • ESXi Dump Collector
  • ESXi Syslog Collector
  • vSphere Auto Deploy

I will explain how these services are configured in the VCSA in the next article.

The appliance has a minimum requirements of 4GB of RAM, 7GB of disk space and 2 vCPUs. For a more detailed descriptions of the VCVA requirements you should check this VMware Knowledge Base article:

The are some limitations for the…

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VMware Communities: VMware PowerPoint Icons and Images -…

Thanks VMware for the great icons!  Working on my DR slides and these came in handy.

VMware Communities: VMware PowerPoint Icons and Images -….