I encountered an issue with my Thick Provisioned Lazy Zeroed (TPLZ) storage. Initially, I provisioned 2TB and copied 1.5TB of data onto it. After deleting that data, I assumed the space would be freed up. However, when I tried to copy another 1.5TB, the storage indicated it was full at just 1TB, despite 0.5TB being untouched. Can someone explain what's going on here? Does TPLZ really reserve all that space, and why is it acting like there's still data when there shouldn't be?
1 Answer
It sounds like you're dealing with VMware or something similar. Thick provisioning does reserve space, but if there's a snapshot involved, that could explain the issue. Even after deleting the data, the space might still be occupied by the snapshot's delta files. In your scenario, if a snapshot was taken after the first copy, it could prevent that space from being fully available, so you'd need some free space to consolidate things again. Just check if there are any hidden snapshots you're not seeing.
Thanks for the clarification! Your explanation about the snapshot makes a lot of sense. I did see a message about needing to consolidate the disks, but I can't find any snapshots in the management center or the host. Also, just to note, the OS is on a different volume than the storage drive itself.