Category: Infrastructure
-
Storage Network Segmentation: Why Your SAN Doesn’t Belong on the Same VLAN as Workstations
An iSCSI SAN on a flat network allows any host to attempt LUN discovery against all storage targets — proper SAN zoning and network isolation prevents unauthorized storage access.
-
Prompt Engineering for IT Operations: The Patterns That Actually Work
The single most effective prompt engineering technique for ops tasks is giving Claude a concrete example of the output format before asking it to generate anything.
-
Power and Cooling Calculations: The Math Behind a Right-Sized Data Center
Data center cooling capacity is almost always the binding constraint — not power, not network ports — and it is the one constraint that cannot be quickly expanded under load.
-
Hardware Lifecycle Automation: Tracking 500 Devices Without a Spreadsheet
Hardware that reaches end-of-life without a replacement plan becomes a security liability within 12 months — automated lifecycle tracking is a security control, not just an operations convenience.
-
Out-of-Band Management Network: Building the Network That Survives Outages
An out-of-band management network that shares infrastructure with the production network it manages will fail alongside production — defeating its entire purpose.
-
Syslog at Scale: Aggregating 10 Million Events per Day Without Losing Data
A syslog pipeline without a buffering layer drops events during downstream processing spikes — 0.1% event loss in compliance logging is not acceptable for audit purposes.
-
VXLAN Overlay Network Segmentation: Extending Layer 2 Across Data Centers
VXLAN solves the 4,094 VLAN limit that constrains traditional data center segmentation — but without BGP EVPN control plane, VXLAN flood-and-learn creates BUM traffic storms at scale.