chore: initial import from KNEL/PFVCluster@041d311 [#769]

Split per O&M lane work order. Full history: KNEL/PFVCluster. https://projects.knownelement.com/issues/769#note-4152
2026-09-03 21:39:35 -05:00
commit 7a899b8ac6
67 changed files with 7166 additions and 0 deletions
@@ -0,0 +1,36 @@
+#!/bin/bash
+# verify-tuning.sh - verifies apply-tunings.sh results on target hosts.
+set -uo pipefail
+SSH_OPTS=(-o BatchMode=yes -o ConnectTimeout=8 -o StrictHostKeyChecking=accept-new)
+
+for host in "$@"; do
+    echo "================================================================"
+    echo "[$host] verification"
+    echo "================================================================"
+
+    echo "--- TCP congestion control ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'sysctl net.ipv4.tcp_congestion_control net.core.default_qdisc 2>/dev/null'
+
+    echo "--- vm.swappiness ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'sysctl vm.swappiness 2>/dev/null'
+
+    echo "--- scaling_governor (cpu0) ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 2>/dev/null'
+
+    echo "--- NFS mount options (first 2 mounts) ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'nfsstat -m 2>/dev/null | head -30'
+
+    echo "--- storage.cfg: any options lines? ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'grep -c "options" /etc/pve/storage.cfg 2>/dev/null || echo 0'
+
+    echo "--- storage.cfg: NFS stanzas (first 3) ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'grep -A 6 "^nfs:" /etc/pve/storage.cfg 2>/dev/null | head -25'
+
+    echo "--- nconnect TCP connections to NFS servers ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'ss -tn state established "( dport = :nfs or sport = :nfs )" 2>/dev/null | head -20; echo "count:"; ss -tn state established "( dport = :nfs or sport = :nfs )" 2>/dev/null | tail -n +2 | wc -l'
+
+    echo "--- VMs still running? ---"
+    ssh "${SSH_OPTS[@]}" "root@$host" 'qm list 2>/dev/null | head -15'
+
+    echo ""
+done