Two root causes behind #1516's remaining reports:
- A node whose Proxmox disks/list query fails (PVE probes SMART per disk
inside that call, so dozens of disks can exceed the API window) now
falls back to the linked host agent's smartctl inventory instead of
leaving the Physical Disks view empty. Each node also gets its own
attempt window so one slow node no longer starves the rest of the
cluster, and a poll that runs out of budget saves partial results.
- The -n standby probe guard is dropped for positively confirmed
non-rotational devices in both the host agent and the node sensor
wrapper. The guard exists to avoid spinning up sleeping HDDs; an SSD
has nothing to spin up, and some SATA SSDs answer CHECK POWER MODE
with a bogus standby state that permanently hid their temperature,
attributes and history.
Refs #1516
On the #1483 reporter's Proxmox node a SATA SSD (INTEL SSDSC2BW240A4) never
appeared in Pulse even though smartctl reads it fine, because the agent's
discovery and probing both had single points of failure:
- Discovery trusted smartctl --scan-open exclusively whenever it returned at
least one target. The scan silently omits any device it fails to open at
scan time (the failure is only a #-comment in its output), so one bad open
hid a real disk while its neighbours were listed.
- A scan-provided -d type got exactly one probe attempt on Linux. A type whose
full query (-i -A -H) fails or returns nothing dropped the disk silently.
- A probe yielding no usable SMART data dropped the disk entirely instead of
reporting the identity the kernel can prove.
Fixes, all in the agent collector:
- Union discovery: the kernel block device list (/sys/block, lsblk fallback)
is the ground truth for which disks exist; smartctl --scan-open only
contributes device-type hints. Any physical disk the scan misses gets an
untyped probe target.
- Untyped retry: a typed Linux probe that errors, yields no usable data, or
fails to open (exit bit 2, distinct from -n standby,3's exit 3) retries with
smartctl auto-detection before giving up. Multiplexed controller members
(megaraid, cciss, ...) are exempt since dropping -d would probe the array.
- Identity-only fallback: when every probe fails but the disk exists in
/sys/block with nonzero capacity, report device/model/serial/size with
health UNKNOWN instead of hiding it. No SMART data is fabricated;
multiplexed array paths and zero-capacity media are excluded.
- Exclusion follow-through: --disk-exclude now also matches the canonical
post-refine name (nvme0n1), not just the scan label (nvme0).
Regression tests use smartctl/lsblk fixtures captured from PVE 9.1.9 hosts
and the issue report. Verified live on two PVE nodes: NVMe keyed by
namespace with byte-exact pvesh sizes, SATA disk reported with full identity.
Completes the #1483 fix started in bd20069c6 (namespace devpath, authoritative
sizes, merge downgrade guard). Closes#1483.
Back-port the smartctl regex half of v5 fix 0c2de2938 to v6 (the
prerelease-aware CompareVersions half is already present). smartctl text
fallback now matches 'Current Drive Temperature:' in addition to
'Current Temperature:', so OPNsense/pfSense disk temperatures are read
instead of reported as missing. Adds a regression test.
On a Proxmox node, physical disks collected by the host agent were keyed by
the NVMe controller (e.g. "nvme0 [nvme]") instead of the namespace, reported
sizeBytes 0 (or a stale filesystem-usage value), and flickered as the agent
reading intermittently replaced the authoritative Proxmox disks/list reading.
Root causes:
- smartctl --scan-open reports NVMe disks by their controller char device
(/dev/nvme0), and that scan label became the reported devPath.
- DiskSMART carried no capacity, so the server backfilled size by matching the
SMART device against host filesystem-usage entries, which never match a whole
partitioned/LVM/ZFS disk, leaving size 0.
- The unified-resource merge let the agent's controller label overwrite the
canonical Proxmox /dev/... devPath.
Fixes:
- The agent now reports the canonical block device (an NVMe controller resolves
to its namespace) and the authoritative capacity from /sys/block, with the
smartctl user_capacity / nvme_total_capacity as a cross-platform fallback.
Disks behind multiplexing controllers (megaraid, cciss, areca) keep their
disambiguating label and smartctl-reported size.
- SizeBytes flows through the agent report, host model, and adapter; the
filesystem-usage match is demoted to a legacy fallback.
- The merge keeps a canonical /dev/<device> devPath and never downgrades it to
a scan label, so an un-updated agent can no longer corrupt Proxmox data.
Refs #1483.
rcourtman