ASS PDU Source Sync

• Source: aurora@100.124.55.22:/home/aurora/data/pdu
• Target raw directory: /project/aurora/raw/pdu
• Target Zarr: /data/aurora/products/power/pdu.zarr

The source sync copies flat daily files matching pdu_DDMMYYYY.csv. It scans a rolling ten-day window and permits a five-minute source-clock grace so the active daily file is recopied when its size or mtime changes.

Authentication

The sync uses Tailscale SSH with private-key authentication disabled. No source private key is installed.

Timers

• aurora-pdu-source-sync.timer
• aurora-pdu-append.timer

Backup and retention

Matching PDU CSV files are archived additively to GWS and object storage. ASS keeps each file for at least seven days; deletion requires an unchanged exact path in a signed permit backed by cloud, GWS, and object-store proof. The derived pdu.zarr is a product and is not raw-retention evidence. See Backups and Archive Services.