The card described the machine and said nothing about the thing whose dashboard
it is. Cache size matters most: VV_CACHE_ROOT is under /tmp, which on Unraid is
RAM, so it is shown against the rootfs percentage it counts against. Jobs are
locks with a live process — four lock files were sitting there and one job was
actually running.
Writing down what each endpoint actually guarantees made the places it
didn't obvious — shell arguments reaching a crontab or a bash -c
unescaped, master.conf written without tmp+rename, and conf edits that
could be saved without ever being parsed.
- ARRAY_START_SCRIPTS: add api_cache_writer.sh so monitor/arrs cache is populated
immediately on array start (/tmp is tmpfs — cleared on reboot, so first-boot
load was hitting live API for up to 60 seconds until the cron fired)
- api/monitor.php + arrs.php: raise cache TTL from 90s to 300s — stale-but-instant
beats a 6-second live API wait if the writer is momentarily behind
- include/unraid_api.php: replace last inline uptime formatter with vv_format_uptime()
New span-1 card shows global RSYNC_ENABLED gate, per-window badges (C/D/I/W),
active profile names + elapsed time from lock files, and last-sync timestamp
per orchestrator window from script log files.
GPU shrunk from span 2 to span 1 to make room. Row 3 is now:
Rsync(1) | GPU(1) | Transcode(2) | Streams(4)
Adds vv_disk_io_rates() — snapshots /proc/diskstats each poll and
computes per-device MB/s. Exposed as disk_io in the monitor API.
JS:
- Per-disk rows: ↓read ↑write inline next to disk name (green/amber, hidden when idle)
- Pool rows: aggregate pool I/O next to pool name
- Array header: total array I/O in the subtitle line
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>