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On April 30 the eleventh release of OpenStack hit the streets. Dubbed Kilo, this release adds some new functionality which dovetails nicely into the enterprise class features offered by the Pure Storage FlashArray.
The Pure Storage Block Storage (Cinder) driver is again included in the core OpenStack Kilo release and incorporates all the features from the previous release with some significant enhancements to enable more enterprise usage and ease of management.
One important thing to note about the Pure Storage Kilo Cinder driver is that is utilizes the Python SDK we released as a standalone product at the same time as OpenStack Juno. As the SDK is now a pre-requisite, it is essential to install the
pip command and then install our SDK prior to installing OpenStack on your controller nodes. If you use deployment tools such as Foreman and Puppet to build your OpenStack environment, then install the SDK immediately after deployment on your Cinder nodes running the cinder-volume service.
This is not difficult as I show here in the few steps required to install the Pure Storage Python SDK on the latest versions of the major Linux distributions.
For RHEL 7 and CentOS 7 run the following commands:
yum install epel-release
yum install python-pip
pip install purestorage
For Ubuntu and Debian distributions:
apt-get install python-pip
pip install purestorage
You might ask why we decided to use our SDK as an integral part of our Cinder driver. So did I and this is the answer I got from one of our senior OpenStack developers…
“The primary benefit is that we can add new features/functionality and bug fixes to the REST API client code without having to wait for the next OpenStack release. By de-coupling them we have more flexibility to quickly resolve issues. It also makes the code base smaller as far as things that need to be supported by our engineers which means less time fixing bugs/updating for new features and more time for us to work on cool new things.”
I mentioned earlier about the new features and enhancements in our Cinder driver, so let’s have a quick look at each one as they relate to the Pure Storage FlashArray:
For more details on configuring the Pure Storage Cinder driver in Kilo you can download the new configuration guide here.