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Cost Estimates

Like to keep the bean counters happy?

Surely you've dealt with other professional services organizations where you were given hourly or daily rates – and really had no way of knowing how much consultancy you needed, so you had no idea of the cost, either.

We're different. Check out our Professional Service cost estimates for a clear picture.

Disaster Recovery

You did your best to secure your setup against outages caused by hardware failures or infrastructure outages? That's great! But would your setup survive a catastrophic failure? This is where disaster recovery comes in. And with the Linux Cluster Stack, you've already got all the tools for effective disaster recovery in your hands!

Available Discounts

We have a very attractive volume discount model — the more Credits you buy, the cheaper they get. Take a look!

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The Shoutbox

You've received help from one of us on IRC, on a mailing list, or at a conference? And we made a useful contribution to your setup, or fixed your problem? This is where you can say thanks — and read what other community members have to say about us!

Heartbeat

Heartbeat is an alternative to Corosync for the cluster communications layer. Like Corosync, it constitutes the "lower" half of the high-availability stack (the "upper" half is cluster resource management, such as Pacemaker).

Cluster Filesystems

Cluster file systems are complex and challenging. They are sometimes required if you're building huge network storage pools, or if you want to run clustered instances of certain applications. You typically deploy them together with a cluster manager like Pacemaker.

A cluster file system is not a cure-all. It requires careful consideration and a perfect technical setup. And if you're using it incorrectly, it'll do you more harm than good.

We're well versed in the pros and cons of available cluster file systems, and we'll be happy to share!

DRBD

DRBD (a registered trademark of LINBIT, who maintain the project) is a solution for redundant data storage within HA setups. It enables you to mirror data from one server over to another, keeping it available even if one of the two servers fails.

Pacemaker

Pacemaker is the state of the art cluster resource manager for Linux and the Linux-HA stack. It constitutes the "upper" half of a cluster infrastructure (the "lower" half is the cluster communications layer, such as Heartbeat or Corosync).

Corosync

Corosync is a framework for reliable cluster communications, the "lower" half of the high availability software stack. (The "upper" half is cluster resource management, such as Pacemaker).

We have collected multiple years of experience with setting up and maintaining Corosync-based clusters. We're actively involved in its development by sending bug reports and patches. We're frequently in touch with the Corosync core developers.

Ask The Expert Now!

Need help with your High Availability setup? Ask The Expert Now™ is our unique offering that provides expert help when you need it most: Right Now.