Performance Tuning

At Open vStorage we now have various large clusters which can easily deliver multiple millions of IOPS. For some customers it is even a prestige project to produce the highest amount of IOPS on their Open vStorage dashboard. Out of the box Open vStorage will already give you very decent performance but there a few nuts and bolts you can tweak to increase the performance of your environment. There is no golden rule to increase the performance but below we share some tips and pointers: vDisk Settings The most obvious way to influence…Read more …

QEMU, Shared Memory and Open vStorage

QEMU, Shared Memory and Open vStorage, it sounds like the beginning of a bad joke but actually it is a very cool story. Open vStorage secretly released in their latest version a Shared Memory Client/Server integration with the VolumeDriver (the component that offers the fast, distributed block layer). With this implementation the client (QEMU, Blktap, ...) can write to a dedicated memory segment on the compute host which is shared with the Shared Memory Server in the Volume Driver. For the moment the Shared Memory client understands only block semantics but in the…Read more …

Open vStorage 2.2 alpha 1

Today we released a first version of our upcoming 2.2 release. We will from now one do more frequent releases which will cover the latest changes but keep in mind that these release have not gone through our full QA cycle. Having these 'alpha' versions released will allow you, the Open vStorage community, to have earlier access to new features and bugfixes but on the other hand these releases are less stable than our 'beta'-releases. Documentation for these releases will also not always be available. In case you need help, the Open vStorage…Read more …

Open vStorage 1.5

During the summer the Open vStorage Team has worked very hard. With this new release we can proudly present: Feature complete OpenStack Cinder Plugin: our Cinder Plugin has been improved and meets the minimum features required to be certified by the OpenStack community. Flexible cache layout: in 1.5.0 you have the capability to easily configure multiple SSD devices for the different caching purposes. During the setup you can choose which SSD's to partition and then later when creating a vPool you can select which caching device should be used for read, write and…Read more …

Webscale 2.0

As a Product Manager I'm very often on challenging calls with potential users of Open vStorage and one of the questions that comes back on almost every call is: How scalable is Open vStorage? It is a question that is easy to answer: extremely scalable. Open vStorage is built from the ground up to support environments which have 100+ hosts. It is designed to be used in large datacenters as primary storage platform for all types of Virtual Machine workload. I'm aware that the term scalable is a bit biased and can have…Read more …