IBM DevOps Code ClearCase vs. Rackspace OpenStack

Rational ClearCase is well suited for a company where development is done from one single location and there are a lot of dependent projects, systems or modules that need to be version controlled. Especially good for a company that creates customized software for clients. Well suited for disciplined development environments. Waterfall methodology mentality seems a better fit for ClearCase than Agile.

ClearCase is not well suited for companies that have development geographically distributed and using Agile Methodologies.

Incentivized

Need to get an application up and running, then I would say the open stack is a great place to test it out. Why spend time setting things up when you can let them do it for you? Many people also have experience with using Rackspace in some capacity so its an easier learning curve for many people.

Incentivized

• Rational ClearCase is excellent for handling versioning and branching. No other tool I've used has the depth that ClearCase has when it comes to handling complex branching scenarios and identifying where certain versions of particular files are within a particular configuration.
• Rational ClearCase handles parallel development of many dependent applications really well.
• The use of ClearCase Views to switch between projects and configurations is extremely convenient as opposed to the local workstation model of the competitors.

Incentivized

• Quick uptime
• Simple Signup
• Lots of options on what you need
• Rackspace is a known company (not some unknown startup)

Incentivized

• Extremely buggy.
• Sometimes the repository gets locked for no reason.
• Slow.

Incentivized

• Support does not seem to be what it use to be, use to be a solid 10 when dealing with them, now more like an 8
• Pricing can be tricky to figure out
• For some people too many options.

Incentivized

GIT Stash is superior to IBM Rational ClearCase in many ways. Bundled with SourceTree, the UI is far more modernized and updated than IBM Rational ClearCase. Being able to visually see the individual branches that are created within the repository is much more straightforward than the versioning method of ClearCase. GIT also seems to be a lot faster when it comes to checking in/out code and creating the repository.

Incentivized

I looked into going with Amazon EC2, was very comparable in pricing, services, options, etc. and a bit cheaper too. Why I did not go with Amazon mainly has to do with knowing Rackspace and being familiar with them. It was easier for me to use a Rackspace product then go with Amazon Elastic Compute Cloud

Incentivized

• Managed code versioning for many years.
• Only one person can edit code at a time - slows processing down.
• IBM is an expensive product to support.

Incentivized

• Quick setup allowed me to work on the application not setup of where it was going to run
• Expand ability with a few clicks was a great help, no worrying about if I needed more "power", few clicks and I had it.
• Tech support is hit or miss so that can be problematic and that was cause for concern and took time away from development

Incentivized