Thick vs Thin Disk Provisioning

Remember that modern all-flash arrays have significantly reduced the performance gap between thin and thick provisioning, making thin provisioning more viable even for performance-sensitive workloads in many environments.

DSM 支援兩種空間配置模式：Thick Provisioning 和 Thin Provisioning。 若選擇 Thick Provisioning，在您建立 LUN 時，儲存空間即預先配置其總容量。 LUN 會完全占用其所配置到的儲存空間，這些空間便無法再為其他服務所使用。 舉例來說，當您建立 100 GB 的 Thick Provisioning LUN 時，儲存空間便會減少 100 GB 的容量，即使您尚未寫入資料至 LUN。 Thin Provisioning LUN 僅占用實際使用的空間，

Thin vs thick provisioning: Optimize your storage efficiency and costs with this in-depth comparison guide. Learn which strategy is right for you!

Thick provisioning is a type of storage pre-allocation. With thick provisioning, the complete amount of virtual disk storage capacity is pre-allocated on the physical storage when the virtual disk is created. A thick-provisioned virtual disk consumes all

我們收集的數據顯示 VMware vStorage thin provisioning（thin虛擬磁碟的用量）與 VMware vStorage 預設方式的 provisioning （zeroed thick 虛擬磁碟的用量）有著同等的效能。

要能夠減小您的薄虛擬磁碟的VMDK文件大小，您需要知道如何將以前刪除的數據所佔用的區塊歸零。