Change the cluster distribution without downtime

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Recently we’ve upgraded one of our virtualization clusters (more RAM), and in the course of this did an upgrade of the virtualization hosts from Ubuntu Lucid to RHEL 6.3 — without any service interruption.

Backup ideas: using a double-stacked setup

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Have you ever wanted to do a file based backup of your data without impacting your application, and without stopping your HA replication? Here is one possible method.

Mirrored SAN vs. DRBD

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Every now and then we get asked “why not simply use a mirrored SAN instead of DRBD”? This post shows some important differences.

LINBIT participates in the German Cloud (“Deutsche Wolke”)

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  Deutsche Wolke (“German Cloud”) was founded to establish Federal Cloud Infrastructure in Germany. This infrastructure will provide additional legal and security protections for hosted data.  No longer will small businesses be exposed to the legal risk of losing their website presence without a trial (an unfortunate reality when doing business on transatlantic clouds). The natural […]