Is there any way to allocate multiple medata vdev to one pool?
I have several pools from spinning HDDs and I would like to create one NVME SSD pool (double or triple mirror) and put special metadata vdev for all pools from classic drives on it.
Let’s say I will have 2TB on the SSD pool and I will create 5x200GB special metadata vdev on it and leave the remaining space free from the point of SSD lifetime.
Any way how to do it?
Opinions?
A metadata vdev is a part of your pool. If you build another pool from your NVMe devices you cannot assign parts of that pool to your HDD pool(s) for metadata.
You can only assign entire NVMe drives to an existing pool as metadata vdevs. They will not be usable by any other pool.
Keep in mind that these metadata vdevs should have the same or at least a comparable level of redundancy as your data vdevs. Lose the metadata vdev and the pool is toast.
