Longhorn

A record of recovering a disk pressure failure in Code Place that started with WAL growth, including Longhorn replica adjustment, CNPG instance recovery, multipathd interference, adding a Longhorn disk, and checking replication slots, WAL state, and RW/RO endpoints afterward.

A record of tracing a Longhorn volume mount failure during recovery after WAL growth, checking Kubernetes events, share-manager state, ext4 messages, and possible multipathd interference.