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 […]
About nine years ago, LINBIT introduced the dynamic sync-rate controller in DRBD 8.3.9. The goal behind this was to tune the amount of resync traffic so as to not interfere or compete with application IO to the DRBD device. We did this by examining the current state of the resync, application IO, and network, ten […]
As a Linux storage company, LINBIT is always excited for an opportunity to work with the latest developments in storage. One of these new technologies is NVMe over fabrics (NVMe-oF). NVMe is a device specification for nonvolatile memory that utilizes the PCIe bus. NVMe-oF allows us to use these specifications over a network. You can […]
Part of the design of LINSTOR is that if the central LINSTOR Controller goes down, all the storage still remains up and accessible. This should allow ample time to repair the downed system hosting the LINSTOR Controller. Still, in the majority of cases, it is preferred to run the LINSTOR Controller in a container within […]
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 […]
Pacemaker was never designed to operate across the WAN, or any high latency networks. However, there has always been a need and desire to orchestrate active/passive failovers between data centers and across long distances. To address this issue the Booth Pacemaker add-on was conceived back in late 2011. LINBIT has been involved in the development […]
We want to take an opportunity to explain LINBIT’s best practices in regards to DRBD and backup procedures.