k8s/install-cp.sh: add --etcd-arg heartbeat-interval=1000 and
election-timeout=5000 to both bootstrap and join commands. Gives etcd 5x
margin to absorb transient fsync stalls on spinning-disk-backed NFS
storage (default 500ms/1500ms too tight for this environment).
proxmox/perf/scripts/audit-vm-disks.sh: new script to audit disk cache
configuration on all VMs across Proxmox hosts. Identifies VMs that would
benefit from cache=writeback (especially etcd/database workloads on
NFS-backed spinning disk).
[#392] [#393]
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All knowledge docs (architecture, runbooks, references, audits, policies)
have been migrated to community.turnsys.com as wiki topics in the VP
TechOps category. Discourse is now the canonical source of truth for
documentation; git edit history no longer serves as the doc changelog.
37 .md files converted to short pointers linking to their Discourse
topics. AGENTS.md updated with new documentation workflow policy.
Code (scripts, configs, playbooks) remains authoritative in git.
Read-only audit (nmap/SNMP/SSH/API) reconciling the repo and fleet after the
operator's module/subproject restructure and infrastructure changes. New
authoritative audit doc captures: 4 switches up / 1 down (r2-tor-top offline),
63 VMs (was 28), 167 DNS zones (was 124), 753 DHCP leases (was 333), tsys5
storage now configured, tsys4 upgraded to 9.2.5, k8s cluster DOWN (cnode wiped,
no etcd quorum), netinfra-02 wiped, 3-tier Tailscale fleet (80 nodes).
Index files (README, AGENTS, docmap, STATUS) updated to the new layout
(provisioning→archive, powerman/console/ups→dcinfra, dns-cluster-setup/switches/
dhcp→netinfra, perf→proxmox/perf) and all stale root-level path references fixed.
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Four new standalone reference documents with Mermaid diagrams (renderable
on Gitea), built from live ground-truth data gathered 2026-07-30:
- NETWORK-TOPOLOGY.md: physical topology diagram, complete switch port
maps (core-sw01 + tor3-stor), VLAN/subnet tables, cross-rack trunk
analysis with Mermaid, NFS data-flow diagram, per-host NIC reference
- STORAGE-ARCHITECTURE.md: tier definitions, all 14 physical disks
inventoried with SMART/size/tier, NFS export→mount map with Mermaid,
per-spindle VM placement (IOPS hotspot analysis), capacity summary
- HOST-REFERENCE.md: one-page-per-host for all 7 nodes with hardware,
network config, storage, tuning state, role, and running VMs
- VM-INVENTORY.md: VM placement diagram, all 28 running VMs with
disk/CPU/RAM/config details, optimization audit (cache mode, CPU type,
qga, disk controller, k8s wnode sizing), stopped VM reference
Updated docmap.md with all four new entries.
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Comprehensive end-to-end audit of the Proxmox cluster covering all three
layers (network, storage, compute) with live data gathered from all 7 hosts
+ 4 switches via SNMP, conman consoles, and LLDP.
Key findings documented in AUDIT-2026-07-30.md:
Network (cross-rack NFS bottleneck root-caused):
- core-sw01 LAG hash = layer-2-3 (no L4 ports) — NFS caps at 1 Gbps per
host pair regardless of nconnect. tor3-stor already uses layer-2-3-4.
- core-sw01 ch1 member mismatch: g16 is UP but not in LAG; g17 is DOWN.
Only 3 of 4 cross-rack links active.
- Both switches use static mode (no LACP) for the cross-rack trunk.
- tsys5 bond0 degraded (1 of 2 slaves, nic2 down).
Storage (major topology changes):
- tsys5 new NVMe (CT500P1 500GB) + relocated SK hynix SSD (512GB) — both
installed but NOT mounted/configured yet.
- tsys4 D3 changed (SK hynix SSD → Seagate HDD, still USB tier-3).
- tsys4 /mnt/albert (Hitachi 2TB internal) + /mnt/backup (WD 5TB USB) added.
- tsys5 S3 unmounted (stale export), S4 gone (broken storage.cfg entry).
- Samsung 860 PRO SSD at 93% full.
Fleet consistency:
- tsys4 behind on PVE 9.1.5/kernel 6.17 (fleet: 9.2.5/7.0.14).
- tsys4/5 bond hash + nconnect + rmem/wmem inconsistent with tsys6/7.
- 10+ VMs using cache=writethrough on NFS (slow synchronous writes).
Gardening: updated STATUS.md, docmap.md, AGENTS.md key scripts table.
Superseded AUDIT-2026-07-29 as the authoritative audit.
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pfv-tsys8 is permanently retired. Strike its only doc reference and
correct the stale comment in perf/deploy-check.sh that wrongly listed
pfv-tsys9 as "off the air" (tsys9 is online and in the host array;
tsys8 is the retired host).
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Add CAPACITY-GOALS.md §6: local storage is a scratch tier for ephemeral workloads
(container image cache, build artifacts, emptyDir), NOT for VM OS drives (which
stay on NFS where redundancy is handled via 01/02 pairs + cross-disk spreading).
Documents per-host local storage suitability: tsys3/9/2 excellent (NVMe/SSD),
tsys5 usable (HDD bulk), tsys6/7 unusable (USB 2.0 at 30 MB/s). Includes the
future k8s StorageClass mapping (local-fast for scratch, nfs-hdd for persistent).
Adds forward-looking §12 to the audit referencing this policy.
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Rewrite STATUS Pending section to match the audit's phased action plan (§11)
exactly. Remove stale "wnode-tsys6 D5->S4, wnode-tsys7 D5->S1" line (wnode6
already on S4, wnode7 on S3, S1 is not a target). Fix section reference (§12 ->
§11). Correct actual-usage percentages (73%/37%/62%) and CPU idle range (0-5%).
Add D2 IOPS hotspot as a known issue. Fix sectestbed suite count in audit (x9 ->
x10). Verified all VM counts and host data against fresh ground truth.
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Operator corrected the tsys6 S1 export path (S21 -> S1) and added the missing
S1 entry to tsys9. Verified both via pvesm status: all 8 NFS stores active on
each host. Updated audit findings table, §5.1/§5.2, and Phase 0 checklist.
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Delete AUDIT-2026-07-28.md (old audit). Rewrite AUDIT-2026-07-29.md as the
sole authoritative audit after reading live /etc/pve/storage.cfg, /etc/exports,
and /etc/fstab on every host.
Key corrections:
- local-nonprod on tsys5 IS the S1 physical disk (dir storage, not separate).
S1 carries 16 sectestbed VMs, not 0 — it is NOT a migration target.
- storage.cfg is per-host, not cluster-wide — each node defines its own entries.
- BUG: tsys6 S1 export path typo (S21 instead of S1) — S1 broken on tsys6.
- GAP: tsys9 has no S1 defined in storage.cfg.
- Revised disk migration plan avoids S1, targets S2/S3/S4/D5 for IOPS spreading.
- D2 goes 17->5 VMs; S2/S3 absorb the load (7 each); S1 untouched (16 idle VMs).
- Refreshed ground truth: cnode5 deleted, cnode4 stopped (user actions this session).
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Add §13-§15 to AUDIT-2026-07-29: current per-VM host+disk inventory, target
end-state inventory (RAM/CPU relief + HDD IOPS rebalancing), and a phased action
checklist. Headline disk finding: D2 carries 17 of 26 NFS VMs while S1 sits
empty — the plan rebalances to 4-5 VMs per spindle (D2 17->5, S1 0->5) using HDD
exports only. Host moves relieve tsys1 (115%->77% alloc) and tsys9. All disks
stay on HDD (SSD/NVMe tiering deferred to post-Friday).
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Add CAPACITY-GOALS.md (80% RAM / ~50% idle CPU targets + workload placement
model) and AUDIT-2026-07-29.md (live end-to-end analysis of all 7 hosts). Key
findings: memory goal met fleet-wide (highest 72%); CPU idles 0-6% (chase via
workloads, not hardware); tsys5 is single-CPU not dual; cnode4/5 are stale
running VMs. Answers the wnode-sizing question (grow tsys9, not tsys1), confirms
tsys6/7 for RackRental, and gives a DDR3 compatibility decision tree (RDIMM-only
servers reject consumer UDIMM). Refreshed STATUS/docmap and the returned audit
logs, and fixed an empty-array abort in deploy-check.sh.
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Docs moved from docs/k8s -> k8s/docs and docs/proxmox -> proxmox/docs to sit
beside their code. Updated all cross-references (docmap, STATUS, README, AGENTS,
k8s README). Fixed SCRIPT_DIR path resolution in 3 perf scripts broken by the
reorg (deploy-check/and-fix/finish-host pointed at root/scripts instead of
perf/scripts). Registered the new top-level proxmox/ dir in all listings.
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mrcharles
reachableceo