I am planning to upgrade to 7000-series too and did consider either creating pool from two M.2's as storage (and one fast gen4 M.2 as system drive), but after reading about it, desided not to. Then I considered Store MI, but documentation seems strange. These are system requirements:
"2.3 Storage Devices
• At least one rotational HDD of any capacity. The HDD must be connected to a SATA port
provided in the AMD processor or chipset.
• At least one unformatted, uninitialized, unallocated SATA or NVMe SSD for storage
acceleration. If using a brand new, unused SSD, simply plug the SSD into the system. Most
new SSDs will offer a default name to identify it in the AMD StoreMI Cache device menu. A
used SSD can be re-used as an AMD StoreMI cache device. However, all the vital data must
be backed up by the user and any existing partitions/volumes must be deleted before
proceeding.
• The former AMD StoreMI tiering software must not be installed.
• The system should not be configured for RAID storage.
• The maximum drive count is 16.
• A few systems will require additional NVMe® to be connected to the system. The SATA SSD
on the board will not be able to fulfil the minimum 2 storage controller criteria for StoreMI to
install and function.
• The storage devices connected to the third-party SATA AHCI controller ports are not
supported by StoreMI. You must connect the storage devices to AMD specific SATA AHCI
controller ports for StoreMI to support it
source: https://www.amd.com/en/technologies/store-mi (user guide)
Then there is the question, if you don't have UPS and there is a sudden power loss. Just how much data corruption you might get...
Not sure what I'll do. Maybe just RAID0 between two storge PCIe NVME's a a separate system drive or then just three separate drives, which might be the simplest and safest option.
(still my gues is, that requirement of spinnig hdd is not true?)
