Hard problems.
Clear answers.
Real-world runbooks, architecture notes, and hard-won lessons for engineers who build, automate, and keep critical systems running.
Practical over theoretical. Repeatable over clever. Useful when it matters.
↗ ↗ ↗From the field.
Expand RHEL LVM after a storage volume grows
A layer-by-layer procedure for turning new NVMe/TCP capacity into usable filesystem space without guessing where the missing terabytes went.
The disconnected OpenShift upgrade preflight
Check the release path, mirrored images, catalog content, trust chain, and cluster health before you start a disconnected update.
A KVM guest paused. Follow the I/O trail.
A focused triage path for libvirt guests that unexpectedly enter a paused state, especially when their disks live on remote storage.
Go deep. Stay sharp.
No endless theory. Just the systems, failures, and decisions engineers face every day.
Linux & RHEL
Performance, storage, security, and the fixes you will need again.
OpenShift
Cluster lifecycle, disconnected operations, and platform reliability.
Automation
Repeatable workflows, Ansible patterns, and fewer manual mistakes.
Storage & Virtualization
NVMe/TCP, LVM, KVM, capacity, and troubleshooting.
Field Engineering
Patterns, debugging methods, and lessons from production.
Keep the commands.
Skip the hunt.
Fast, copy-ready command references for the moments when you already know the problem and need the right starting point.
Open the toolbox# Identify filesystem and mount points
$ pvs && vgs && lvs
# Inspect the LVM chain
$ df -hT
# Confirm filesystem capacity
More to explore.
Design an Ansible account provisioning workflow
A blueprint for combining Active Directory, Linux identity attributes, IdM overrides, and AAP surveys without hardcoded credentials.
Move bootable disk images across slow links
A practical way to think about compression, partition-aware copying, and reproducible restore tests when a full raw image is too large.
Update compliance content without losing traceability
A versioned intake process for SCAP tools, benchmark content, signatures, and test results in disconnected Linux fleets.