Windows Server 2012 Storage Space Disk Check

How do I check how many disks in a storage pool are occupied by virtual disks in the storage space?

In Windows Server 2012, storage space refers to striped data that is written to the underlying physical disk. Interleaving indicates the amount of data written per column strip. For example, by default, the amount of interleaved data is 256KB.

This means that a virtual disk in a storage pool is divided into five physical disks, five interleaved 256KB strips, and the stripe width is 256KB*5 (that is, single-pass data). ) is equal to 1280KB.

It doesn't matter, if the virtual disk is mirrored, parity is valid, and those columns are being used, the total disk usage will always show the column value. But when you use mirroring and parity, the stripe width value will include the effect and mirror data, so it can reflect the actual data writes, like these parity/mirror blocks are included in the stripe area.

Here we can use a few methods to check. It is recommended to use the Windows PowerShell command. Note that you can see the interlaced value, the NumberOfColumns value, and the ParityLayout value that also shows the ResiliencySettingName value in the Parity option.

Get-VirtualDisk -friendlyname VirtualsDrive