GCP Storage Pools: Cheap Boot Disks, emptyDir Vol & FSTRIM/DISCARD

This article explains how a Storage Pool absorbed the boot disks and made them almost free. The same boot disks also became home to ephemeral data such as Trino cache, task spill, and Spark shuffle through emptyDir. But this introduced an unexpected problem: deleted transient data left behind ghost blocks. FSTRIM/DISCARD is what allows those blocks to be reclaimed. Transient workloads spilling…

This is an excerpt. The full article continues at Groww.