IBM DevOps Code ClearCase vs. VMware Salt

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

Managing heterogeneous environments of large numbers of nodes, especially nodes which may need sudden changes (security updates, for instance), or frequent replacement, is a strength for Saltstack. Simplicity is not a strength for Saltstack. In a homogenous environment (all CentOS 7, for example, with no Debian or Windows) I might recommend using Ansible instead - it is less flexible and granular, but simpler to configure.

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

• A superb remote execution framework! SaltStack allows us to easily program numerous functions on top of it. For example, we developed a fast parallel asynchronous deployment tool that handles all software deployment, including interdependent service management.
• Configuration management is now easy. We take advantage of this to automate (in tandem with AWS tools) the stand-up of all servers and services. It is also relatively easy to create new configuration management states for software not yet supported by the community (e.g. Grafana).
• Flexibility. Numerous small utilities have been built which simply wrap around SaltStack to allow tedious tasks to become easy.

Incentivized

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

Incentivized

• Managing network hardware should be more native and easy
• SaltStack should buffer jobs and, when a client returns, make sure it is executed proberly
• SaltStack should provide basic pillar and states structures to help get newbies started

Incentivized

We haven't had to spend a lot of time talking to support, and we've only had one issue, which, when dealing with other vendors is actually not that bad of an experience.

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've used shell scripts over ssh, custom in-house deployment tools, Chef, and SaltStack. I've evaluated Ansible, but I was never happy with performance over SSH. Chef's loose configuration data model and lack of philosophy and conventions around use makes it difficult for a team to share responsibility for configuration code. Needing to use additional tools to do orchestration for cross-host/agent dependency relationships made me look for more. SaltStack, while not as mature when I first tried it, impressed me with its speed and elegant design

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

• SaltStack has reduced the time it takes to deploy new machines for us 10-fold.
• It is much easier for us to maintain compliance with industry standards with SaltStack.
• No negative impacts!

Incentivized