HP ProCurve 2800 initial setup

By Michael McGarrah · March 09, 20247 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

By Michael McGarrah · March 04, 20245 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

By Michael McGarrah · February 06, 20244 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.

New Laptop update

By Michael McGarrah · January 26, 20243 min read

All T480 upgrades complete: 64GB RAM, 4TB NVMe, WiFi 6E, IR camera, backlit keyboard, and 72Wh extended battery. A used laptop that now outperforms what I could buy new at twice the price.

Posts

2024-03-09 HP ProCurve 2800 initial setup
2024-03-04 Ceph Cluster rebalance issue
2024-02-06 Aggregated Network Connections with LAG/LACP
2024-01-26 New Laptop update