McGarrah Technical Blog

Running Github Pages locally

· 2 min read
Getting Jekyll and GitHub Pages running locally in WSL2 Ubuntu, including the missing webrick fix for Ruby 3.0+ and using VS Code for markdown editing.

HP ProCurve 2800 initial setup

· 7 min read
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.

Ceph Cluster rebalance issue

· 5 min read
Fixing a severely imbalanced Ceph cluster where OSDs added in batches left the first three drives at 75-85% while newer ones sat nearly empty — by tuning backfill and recovery parallelism.

Aggregated Network Connections with LAG/LACP

· 4 min read
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.

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