win32_diskDrive - how to tell which drive is which?

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win32_diskDrive - how to tell which drive is which?

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All Forums >> [Scripting Technologies] >> Windows Management Instrumentation >> win32_diskDrive - how to tell which drive is which?

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win32_diskDrive - how to tell which drive is which? - 8/8/2008 4:37:39 PM

dcopenhaver

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Joined: 8/1/2008
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I need to use a wmi query to get the size of a hard drive and branch some logic based on it... this part is no problem. However my script needs to work when there is more than one hard drive present...

I was thinking I could use the index property but I would need to know how windows decides to assign this property to the drives?

eg. say there will always be 2 or more volumes, one for the OS to be installed on, and the others for data. I need to be sure I'm working with the one that the OS is to be installed on. All of this will be taking place from within a winPE environment prior to OS installation. I was thinking that maybe the order in which the volumes are created via the raid controller may dictate the order that they are assigned the index value?

not even sure I'm asking this well... basically I need to be sure I'm working with the right drive, which will be the one to install the OS on, but I don't have any criteria that I can think of to assure this.

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RE: win32_diskDrive - how to tell which drive is which? - 8/27/2008 8:45:44 AM

SAPIENScripter

Posts: 100
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Joined: 5/15/2007
From: SAPIEN Technologies
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You can write a WMI query to return just fixed local hard drives by using;

select * from win32_logicaldisk where drivetype=3

But won't you always install the OS to C:? If so, then use this query: Select * from win32_logicaldisk where deviceid='c:'

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Jeffery Hicks
Microsoft MVP - Windows PowerShell
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(in reply to dcopenhaver)

Post #: 2