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Testable ideas, repeatable procedures, and decision-making notes for infrastructure engineers.
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.
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.
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