Identifying and removing orphaned disks in Google Cloud can significantly reduce storage costs. Orphaned disks are unattached disks that continue to accrue charges despite being unused. By default, when a VM is deleted, its associated disk may remain attached without users, leading to unnecessary expenses. Utilizing the gcloud command compute disks list --filter="NOT users:*" helps in locating these orphaned resources quickly. Implementing automatic audits through Cloud Functions and Terraform state checks further ensures that no orphans go unnoticed over time, thereby optimizing cloud spending efficiently.
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