Disk Space Reclaim - CI/CD Glossary Definition
Disk space reclaim frees runner storage before a job to avoid no-space-left-on-device failures.
Disk space reclaim is freeing storage on a CI runner before or during a job to avoid "no space left on device" failures. On GitHub-hosted runners it often means deleting preinstalled toolchains you do not need.
Large Docker builds and monorepos routinely exhaust the default runner disk, and reclaiming space is a common fix.
Common reclaim steps
Remove unused SDKs and images (docker system prune -af), delete /usr/share/dotnet or the Android SDK, or use a community action that clears preinstalled tools to recover several gigabytes.
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