Jupiter cache drive at 99% BTRFS data allocation — MariaDB + Discourse
crash-looping. Root cause: 589G OwnCloud data stuck on cache (mover
blocked by active SMB session from OwnCloud VM). Migration in progress
(rsync cache->array disk7, ~90% at time of commit). Also fixed /mode
command to acknowledge /color is user-invokable only.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>