Hey, anybody who’s got significant VMWare mojo, help out a bro?

I’ve got a Win7 VM (one of many) that appears to be exhibiting weird disk behavior—the vmdk, a growable single-file VMDK, is almost precisely twice the used space. It’s a 120GB growable disk, and the Win7 guest reports about 35GB used, but the VMDK takes about 70GB on host disk. CHKDSK inside Windows says everything’s good, and the VMWare “Disk Cleanup” doesn’t change anything, either. It doesn’t seem to be a Windows7 thing, because I’ve got a half-dozen other Win7 VMs that operate… well, normally (by which I mean, 30GB used in the VMDK means 30GB used on disk). It’s a VMWare Fusion host, if that makes any difference. Any other details that might be relevant, let me know and I’ll post.

Anybody got any ideas what the heck is going on inside this disk?


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ted_neward

Ted Neward is an independent consultant specializing in high-scale enterprise systems, working with clients ranging in size from Fortune 500 corporations to small 10-person shops. He is an authority in Java and .NET technologies, particularly in the areas of Java/.NET integration (both in-process and via integration tools like Web services), back-end enterprise software systems, and virtual machine/execution engine plumbing. He lives in the Pacific Northwest with his wife, two sons, and eight PCs.

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