Monitoring Linux HA Clusters with Prometheus

You’ve likely heard of Prometheus, the open-source monitoring and alerting solution originally developed at SoundCloud. Prometheus was the second project incubated by the Cloud Native Computing Foundation in 2016 (the first being Kubernetes), and is used by companies like Google, Red Hat, and Digital Ocean as a scalable and efficient way to monitor infrastructure in a […]

Dreaded Day of Downtime

Some say that no one dreads a day of downtime like a storage admin. I disagree. Sure, the storage admins might be responsible for recovering a whole organization if an outage occurs; and sure, they might be the ones who lose their jobs from an unexpected debacle, but I would speculate that others have more […]

Don’t Settle for Downtime

Innovative Data Storage Can Save Cash, Headaches, and Your Data Storage Downtime is Unacceptable When the network goes down, everyone is mildly annoyed, but when the storage goes down,  “Everyone loses their mind, ” as the Joker would say.  And for good reason. No one likes losing payroll data, shipments, customer information, financial transactions, or […]

DRBD and Randtronics DPM

Today we’re happy to announce a new document titled “Block Replication with Filesystem Encryption” which showcases another wonderful use case for DRBD. Block Replication with Filesystem Encryption At Hosting Con, back in April of this year, some colleagues of mine ran into some representatives from Randtronics. Randtronics is the company responsible for the DPM (Data […]

Secure Linux: Atomicorp includes DRBD for replication

Every so often we get a chance to test new¹ software. Usually this opportunity is driven by the question: Does DRBD play nicely with it? At HostingCon this year, we met a team from Atomicorp and decided that it would be interesting to see if we could get DRBD running on this hardened version of […]

Would you want to be your own car mechanic?

Data seems to be on everyone’s mind these days.  From employee to financial data, your company has to keep it available through seamless replication — without downtime. LINBIT DRBD is the open source software that ensures High Availability for your enterprise.

Persistent and Replicated Docker Volumes with DRBD9 and DRBD Manage

drbdmanage has been replaced by LINSTOR. You find more information about LINSTOR: https://www.linbit.com/en/products-and-services/linstor/   Thank you and have a fun read!     Nowadays, Docker has support for plugins; for LINBIT, volume plugins are certainly the most interesting feature. Volume plugins open the way for storing content residing in usual Docker volumes on DRBD backed […]

Testing SSD Drives with DRBD: Intel DC 3700 Series

Over the next few weeks we’ll be posting results from tests that we’ve run against various manufactures SSD drives; including Intel, SanDisk, and Micron, to name a few. The first post in this series goes over our findings of the Intel DC S 3700 Series 800GB SATA SSD drives.

Change the cluster distribution without downtime

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.

Mirrored SAN vs. DRBD

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