How Do I Fix Invalid Operation for Device 0 in VMware

We ran low on storage space on one of our servers, so I created a full clone. I upgraded it to expand the server hard drive to over 2TB. The original VM is down, but we still don't have any scalable snapshots or an ISO or CD.

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Cici· Answered on Jul 31, 2023

When using VMware to manage your computer, you may encounter two errors: "invalid configuration for device 0" or "VMware resize disk invalid operation for device 0". The second error occurs when resizing partitions. To solve this problem, you can try five methods: 

1. Create a snapshot and then delete it to see if the disk can be expanded.

2. See if the disk can be expanded with the virtual machine turned off.

3. Start the management agent on the host console to resolve the communication issue between vCenter and the host.

4. Exchange HTML5 and Flash web interfaces.

5. Check the partition type and convert MBR to GPT.

If you are concerned that the server is prone to random crashes, try EaseUS Partition Master Server for the conversion. This professional disk conversion and management tool can help you convert to GPT without losing data and enjoy more disk space.

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Even as a novice, you don't have to worry about conversion failure. EaseUS Partition Master can make you become a computer expert.

Note: Please back up your important data in advance if you have any.

Here are the simple steps.

Step 1. Launch EaseUS Partition Master and find Disk Converter.

Step 2. Select "Convert MBR to GPT" and click "Next."

Step 3. Select the target MBR disk and click "Convert."

It only takes a few minutes to convert MBR to GPT, you need to restart the server, and you can see that your problem has been solved.

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