So I have a system that holds all of the media, etc for my home. It has two 10TB drives and two 8TB drives in it. However, one of the 8TB drives has died, and I can't physically replace it at the moment (doing this remotely). The array is running fine with the failed drive emulated, but I don't trust that for the long term. 

 

So I would like to move the data off that to another drive, then rebuild the array without that one drive. Is that possible? 

 

I'm thinking something like moving the data off the drive, then removing it from the array and rebuilding. There is plenty of space on the other drives, so that isn't an issue. 

 

Any thoughts on that? I'll be able to physically replace the failed drive in a while, but would rather keep the data protected until then. 

15 minutes ago, Richard Baguley said:

So I would like to move the data off that to another drive, then rebuild the array without that one drive. Is that possible? 

Yes, move all the data from the emulated disk (use disk to disk copy, not disk to share), then do a new config and re-sync parity.

10 minutes ago, johnnie.black said:

Yes, move all the data from the emulated disk (use disk to disk copy, not disk to share), then do a new config and re-sync parity.

Okay, what's the easiest way to do the disk to disk copy? The Unbalance plugin?

Unbalance works, you can also use midnight commander for example, mc on the console.

Okay, thanks. One clarification: how do I create a new config without erasing all of the existing data on the drives?

New config only resets the assignments, it doesn't touch the data, as long as you don't assign a data disk to parity slot nothing will be deleted, and for some time now there's an option to keep current assignments to make it even easier.

Cool, thanks. I haven't had to mess with this for several versions, so I didn't realize that was an option.