Windows shows incorrect free space on Raid 10 volume

Posted by Adenverd on Super User See other posts from Super User or by Adenverd
Published on 2012-10-05T02:40:21Z Indexed on 2012/10/06 9:40 UTC
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storage

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hard-drive

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raid

I have 4 1TB hard drives in RAID 1+0 configuration. Theoretically, I should have ~2TB of available space. Windows says the drive has a total size of 1.81 TB, which I'm fine with.

As far as files on the volume go, I used WinDirStat to determine that I have 552.8GB of files on the volume. This means that I should have somewhere around 1.3TB minimum of free space. Yet Windows shows the drive as only having 492GB of free space.

Are there hidden files somewhere that I can't see (I have show hidden files/folders turned on)? Does Windows not recognize that old files have been deleted? Is there any way to correct this problem?

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