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Development Linux Ubuntu

System sometimes goes dead after `systemctl suspend`, doesn’t come back up even after pulling power cord

I have a machine which is running Ubuntu 16.04 LTS in a light server role (workload predominantly Apache, Docker, GitLab, MySQL and Samba). This machine is running a 3-disk RAID5 mdadm array of Seagate Barracuda Pro HDDs, which may be relevant to this problem. The machine is not booting off the RAID array (a Samsung […]