Over the past few years of tight work with LINSTOR and DRBD9, I have accumulated a some amount of problems and solutions for them. I decided to collect all of them into single article. Not sure that you will face exactly the same problems, but now you could at least understand the mechanics of managing and troubleshooting the DRBD9-devices.
There is not much information on this matter on the Internet. Hope you’ll find it useful in case if you use or plan to use LINSTOR.
