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Welcome to my blog!

First off, let me say thank you for visiting my blog and I hope that you will find some useful information contained within. I have the good fortune (most days I consider it good fortune, anyways) of having a relatively broad area of responsibility in my current job role - it covers a wide range of data center infrastructure components. My hope is that will lead to the production of a variety of content that will benefit people involved in various areas of data center administration.

One of the major projects that I am working on this year is to expand our secondary data center, which includes a new compute environment, storage implementation, new load balancers, new firewalls, and other networking equipment. I plan on creating some posts focused on the deployment, initial configuration and/or just cool ways we're solving business problems with technology.

I have also set some IT certification goals for myself in 2018, as follows:

Citrix Certified Associate - Networking (end of June)
NetApp Certified Data Administrator (end of October)
Undecided VMware certification (my VCP6-DCV expires next February, so I'm on the fence if I want to just renew it on 6.5 or push for one of the VCAP exams).

I am going to be creating some content during the course of my studies to share studying and training resources with other people looking to earn the same certifications.

Keep your eyes out for future posts, and thanks again for reading!

Donny

Popular posts from this blog

Step up your HTTP security header game with NetScaler Rewrite Policies

There are a number of HTTP response headers that exist to increase web site security. If set properly, they can ensure that your site is less exposed to many common web vulnerabilities. By no means are these descriptions exhaustive, so I have included some references that can provide a more in-depth explanation at the bottom of each section. I'd also like to give a shout-out to the OWASP Secure Headers Project and Scott Helme of securityheaders.com - thank you!

Note: Screenshots are from a NetScaler VPX 12.1 - if you are running a different version, the screenshots may look different, but the logic is the same. So that I have something to bind these policies to, I've also already created a load-balancing virtual server named lb_web_ssl and a Service Group for two TurnKey LAMP servers on the back-end.

X-Frame-Options
The X-Frame-Options header is designed to guard against clickjacking (an attack where malicious content is hidden beneath a clickable button or element on a web si…

How To: Unjoin NetApp Nodes from a Cluster

Let me paint you a word picture:

You've upgraded to a shiny new AFF - it's all racked, stacked, cabled and ready to rock. You've moved your volumes onto the new storage and your workloads are performing beautifully (of course) and it's time to put your old NetApp gear out to pasture.

We're going to learn how to unjoin nodes from an existing cluster. But wait! There are several prerequisites that must be met before the actual cluster unjoin can be done.


Ensure that you have either moved volumes to your new aggregates or offlined and deleted any unused volumes.Offline and delete aggregates from old nodes.Re-home data LIFs or disable/delete if they are not in use.Disable and delete intercluster LIFs for the old nodes (and remove them from any Cluster Peering relationships)Remove the old node's ports from any Broadcast Domains or Failover Groups that they may be a member of.Move epsilon to one of the new nodes (let's assume nodes 3 and 4 are the new nodes, in th…

NetApp ONTAP 9.3 Simulator Deployment - Part 1

I am going to be doing a few of these simulator/lab posts in an effort to set up an environment that will pave the way for future guides and blog posts. Hopefully it'll also be a good resource for folks that want to set up their own labs to test out new features and software versions. Today I'm going to show the steps required to deploy Netapp's ONTAP Simulator 9.3 on vSphere 6.5.  I'll also be doing a follow-up article that will detail the process of clustering a second node with this first one.

Note: My lab has vCenter 6.5 deployed along with a Distributed vSwitch, so the steps will be specific to that deployment. I will also assume that you already have basic networking and storage for your virtual machines in place.

Step 1: Deploying the Simulator

1. Browse out to https://mysupport.netapp.com, click on "Sign In" in the upper right-hand corner and log in using your NetApp account credentials.

2. Click on the Downloads drop-down at the top of the screen and c…