Posts in category "networking"

A power outage knocked my Ceph cluster from 15 healthy OSDs down to 4. The recovery took days of debugging — heartbeat cascades, a ceph.conf misconfiguration, and a dead SAN switch hiding behind NO-CARRIER flags on every node.

Repurposing first-generation Google Wifi units by flashing OpenWRT using the SuzyQ CCD cable and Closed Case Debugging.

Getting the HP ProCurve Java WebUI working in 2024 using Firefox 51.0.1 Portable and Java 8 Update 121 Portable — the last versions with NPAPI support before it was removed from browsers.

Powerline networking repeatedly tripped the AFCI breakers in a modern house — turns out arc fault interrupters and powerline adapters are fundamentally incompatible.

Deploying Tailscale on Dell Wyse 3040 thin clients as always-on subnet router nodes connecting three geographically separate homelab networks.

Getting into an HP ProCurve 2810-24 via serial console, clearing the password with the Reset+Clear button combo, and doing initial configuration including IP, SNTP, and SSH setup.

Attempting to use LAG/LACP on a Netgear GS105Ev2 for Ceph SAN throughput, discovering the feature is disabled on 5/8-port models, and landing on HP ProCurve 2800 switches as the real solution.

Evaluating the options for 10Gbps homelab networking on a budget: DAC point-to-point rings, affordable MikroTik SFP+ switches, and the HP ProCurve 5406zl chassis — with no decision reached yet.