Books To Read This Summer

“Enterprise DevOps Adoption Isn’t Mandatory, But Neither IS Survival”

                                        …….Gene Kim in the Wall Street Journal

There has been a lot of talk about disruption in 2015. A big theme in 2016 will be the disruption of the IT professional. Every role in IT will change and the pace at which we learn new concepts, skills and models will be important for success for anyone in IT. This post should help you get your head around some of the changes coming.

Continue reading Books To Read This Summer

DevOps Downunder

EMC CodeStarting on Monday the 30th November we have an exciting week lined up at EMC in Sydney with a bunch of activities. We will have Jonas Rosland and Matt Cowger visiting from the US to drive a week of great discussion around DevOps, 3rd platform and all things cloud native.

If you feel line joining us, here are three activities that are taking place.

  • Tuesday the 1st December at 6:00pm we will be sponsoring a Docker meetup. Venue is at iCentral (the start society) in Sydney CBD. Register here.
  • On Wednesday 2nd December you can eat DevOps for breakfast – this is a customer focussed breakfast session at the Sofitel Wentworth hotel from 7:30. Contact EMC for an invite.
  • If you feel like a beer and a laugh, on Thursday 3rd December at 4pm  we will be recording a pubcast at the Glenmore hotel in Sydney and we need an audience. Register here: DevOps Pubcast

It will be an interesting and action packed week.

Some tech podcasts worth getting in to

Lately I have been getting into a series of podcasts that would highly recommend. They are awesome for flights, long trips etc and give some great perspectives on the tech industry. Here are my top 3 picks:

1) the hot aisle – some colleagues at EMC in the US run this podcast. It’s a fun look at EMC and other enterprise technologies. http://www.inthedc.com/wp/

2) speaking in tech – a fun podcast that has a very open look at all sorts of rumours, technologies and news. http://speakingintech.com

3) the cloudcast – a more serious look at the world of enterprise technology. http://www.stitcher.com/podcast/the-cloudcast-net-weekly-cloud-computing-podcast

Of course there are also our Australian podcasts that a few of us at EMC have been creating:

– the 4th wave: Danny and Ryan have built this audio podcast to discuss future IT topics and trends. http://thefourthwave.libsyn.com/

– TechBasement: Dean and I built this video podcast to interview special guests and record demos. http://TechBasement.podbean.com

A good way to find these in addition to the links is by searching and following them on iTunes. Happy podding.

Never ever do this to Hadoop…..unless you are using Isilon

Let me start by saying that the ideas discussed here are my own, and not necessarily that of my employer (EMC). This is my own personal blog.

A great article by Andrew Oliver has been doing the rounds called “Never ever do this to Hadoop”. Andrew argues that the best architecture for Hadoop is not external shared storage, but rather direct attached storage (DAS). The article can be found here: http://www.infoworld.com/article/2609694/application-development/never–ever-do-this-to-hadoop.html

I want to present a counter argument to this. Now having seen what a lot of companies are doing in this space, let me just say that Andrew’s ideas are spot on, but only applicable to traditional SAN and NAS platforms. There is a new next generation storage architecture that is taking the Hadoop world by storm (pardon the pun!). EMC has done something very different which is to embed the Hadoop filsyetem (HDFS) into the Isilon platform. This approach changes every part of the Hadoop design equation.

Continue reading Never ever do this to Hadoop…..unless you are using Isilon

Pivotal CF Install Issue: Cannot log in as `admin’

Ok, here is an issue I have been struggling with for a while and finally came across a fix. When installing Pivotal Cloud Foundry for a second or third time, often the installation will drop out on the step “creating director user” with the following error:

Target already set to `microbosh-b5f7fa48777480cf307e’ {“type”: “step_finished”, “id”: “microbosh.logging_into_director”} {“type”: “step_started”, “id”: “microbosh.creating_director_user”}

Pivotal CF Issue 2

Running bosh login director f539d3aebcc43dc2d2f0 Continue reading Pivotal CF Install Issue: Cannot log in as `admin’

Pivotal CF Install Issue Error 30002

Here’s another little issue that I couldn’t find any documentation on, but managed to work around. When installing Pivotal CF v1.2.0.0 or v1.2.2.0 I received the following message:

Error 30002: Extracting release archive failed. Check task debug log for details.

The fix I found (after trying a few other options) was to remove everything related to Pivotal CF, including all VMs, templates and delete the Pivotal Ops manager console VMs. Make sure you delete left over VMs that could be on disk somewhere.

Then do a full re-install using Pivotal Ops manager install file pcf-1.2.0.0.ova and using elastic runtime version cf-1.2.1.0.pivotal.

The 1.2.1 version seemed to fix this for me.

Make sure you start from the beginning with the install of the OVA file. A partial reinstall with version 1.2.1 did not work for me.

If you can’t find a copy of this version then leave a comment below. Also, if this happens to help you leave a comment.

Pivotal CF Install Issue – Operation Is Not Allowed In The Current State

If you encounter this issue while Installing Pivotal CF then here is a potential fix. A web search showed no public fix to this so this might help others and the fix is fairly simple. The exact error I received is below and this occurred while installing Pivotal Cloud Foundry v1.2.2. on ESX 5.5.

`block in wait_for_task’: The operation is not allowed in the current connection state of the host. (RuntimeError) Continue reading Pivotal CF Install Issue – Operation Is Not Allowed In The Current State