Coming Soon, a New DRBD Proxy Release

One major part of LINBIT Disaster Recovery is DRBD Proxy, which helps DRBD with long-distance real-time replication. DRBD Proxy mitigates bandwidth, latency, and distance issues by buffering writes into memory, ensuring that your WAN latency doesn’t become your disk throughput. The upcoming release of the DRBD Proxy will come with a few new tools to […]

DRBD/LINSTOR vs Ceph – a technical comparison

INTRODUCTION The aim of this article is to give you some insight into CEPH, DRBD and LINSTOR by outlining their basic functions. The following points should help you compare these products and to understand which is the right solution for your system. Before we start, you should be aware of the fact that LINSTOR is […]

Cheap Votes: DRBD Diskless Quorum

One of the most important considerations when implementing clustered systems is ensuring that a cluster remains cohesive and stable given unexpected conditions. DRBD already has fencing mechanisms and even a system of quorum, which is now capable of using a diskless arbitrator to break ties without requiring additional storage beyond that of two nodes. Quorum […]

Key/Value Store in LINSTOR

Recently we introduced a Key/Value store in LINSTOR and exposed it in a developer-friendly way in the Python API (python-linstor). The first question is why would one want such a Key/Value store in LINSTOR when there are many high performance implementations such as etcd. The request for a K/V store was mainly driven by LINSTOR […]

DRBD and the sync-rate controller, part 3

This is an update to our previous two blog posts here and here. The goal with this post is to even further simplify the steps needed to tune the sync-rate controller. If you compare this post against the previous two post, you’ll see that I omit a few options, and even just simply pick some […]