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Expanding volume, adding M.2 SSD

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[Version: 6.9.2]  I've been using Unraid for several months on a homebuilt server and have a couple questions about upgrades I'd like to perform this weekend.  I use Unraid primarily for Docker and to host some shares, but most of my data is stored on a Synology Rackstation, so the data on my Unraid shares isn't terribly critical.


My array consists of the following:

  • 10TB Seagate Ironwolf NAS drive for Parity
  • 2 more 10TB Seagate Ironwolf drives
  • 3 2TB Seagate Ironwolf drives


I have one 1TB SSD in the nvme0n1 slot as a cache drive.


I've gotten my mitts on another 10TB Ironwolf and a 2TB M.2 drive.  My mobo is an MSI MAG B550 Tomahawk with two M.2 slots.


If I wanted to install the new SSD and use it to store docker info to improve read/write speed, what's the best way to do that?


Also, I have no more available slots for HDs, so if I wanted to swap out the 10TB for one of the 2TB, is that as simple as shutting down the array, swapping the drives and then repairing/expanding the volume?

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