Fast zeroing of drives

For systems that are freshly installed with ONTAP 9.4 or later or systems that are reinitialized with ONTAP 9.4 or later, drive zeroing takes place automatically and is complete in seconds.

Starting with ONTAP 9.4, ONTAP automatically and quickly zeros drives. You no longer experience long wait times for drives to zero before provisioning. This enhancement is supported on both SSDs and HDDs.

If you choose to manually zero drives (for example, using the storage disk zerospares command at the admin level or using boot menu option (4) Clean configuration and initialize all disks), the process also takes only seconds.

The fast zeroing enhancement does not support systems upgraded from a release earlier than ONTAP 9.4.

If any node on the cluster contains an aggregate with fast-zeroed drives, then you cannot revert the cluster to ONTAP 9.2 or earlier.