I'm using Clonezilla to clone a nearly full 1TB NVMe drive to a blank 2TB NVMe drive in my second slot. The process initially estimated about 6 hours, so I went to bed. When I checked in, it's been 15 hours, and it's only 59% done, estimating another 10 hours to finish at a rate of 586 MB/min. Shouldn't these drives communicate much faster than this? Is this normal?
5 Answers
You'd think it would be faster, but it really depends on the cloning method you're using. Cloning sector by sector is pretty detailed since it involves matching the physical layout of everything on the drive, rather than just copying files like a regular file transfer. If you were using platter drives, it might take longer, but even SSDs can take a bit of time.
Keep in mind that NVMe drives can't sustain their full write speeds indefinitely. They have a cache that allows for quick bursts, but once that fills up, performance can drop. The average speed of 586 MB/s could be influenced by the type of NVMe drive and factors like thermal throttling.
Overheating might also be the issue here. If your drives are getting too hot, they can throttle down performance. You could try opening the case and aiming a fan at it to keep things cool.
How are you cloning it? If you're using a USB 2.0 port, that could really slow things down. With USB 3.0, you might expect around 4 hours. Cloning internally with both drives in NVMe slots is usually the fastest way.
Yeah, it's definitely possible. You've got it writing at about 586 MB/min, which means it's going to take a while to finish. If I do the math, it looks like you still might have 15 hours to go after already waiting 15 hours. Sounds like a lengthy process for sure.
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