PowerShell for Windows Admins

Apr 28 2015   1:05PM GMT

Blocksize missing?

Richard Siddaway Richard Siddaway Profile: Richard Siddaway

Tags:
CIM
Disk architecture

I recently had a question asking why the Bloacksize property on Win32_LogicalDisk is empty but is populated on Win32_Volume.

The thing is to remember the underlying thing that these 2 CIM classes represent.

A logical disk is a subdivision of an extended partition. An extended partition can hold one or more logical disks.

When you create a volume on a disk you use either a primary partition or a logical disk from an extended partition. Until you format the volume you can’t have a block size as that is determined by the parameters you use to perform the format.

The documentation for Win32_LogicalDisk states that block size is not populated for logical disks https://msdn.microsoft.com/en-us/library/aa394173(v=vs.85).aspx.

 Comment on this Post

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when other members comment.

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

Share this item with your network: