Why is it recommended that storage volumes created by FC SAN shared storage be configured as Eager Zeroed

Why "Delay Zeroed" is recommended when creating storage volumes

If the storage volume uses a Thin configuration, the Thin configuration can provide the operating system with a large capacity of virtual storage space with a small physical capacity, and each volume will only request physical resources when in use. During use storage utilization is too high, and storage devices are not expanded in a timely manner, storage write full will lead to business system business interruption. Therefore, it is recommended to use Delay Zeroed, where storage resources are fully allocated.