Hi there,
I'm having trouble working out how important the size of the SSDs in a Tiered Storage Spaces deployment is.
We're working on deploying clustered storage spaces with 2 SOFS head units to create a 3 JBOD, 4-column, 2-way mirrored, enclosure redundant SOFS cluster.
Disk Layout
3 x 24-bay JBODs
8 x 200GB SAS SSDs per JBOD (24 total)
16 x 2TB SAS HDDs per JBOD (48 total)
Am I right in thinking that with this setup, I can create a 2 way mirrored, 4 column tiered storage space with ~48TB capacity?
Will the smaller SSDs impact the total capacity of the storage space, or will it just impact the amount of data that can be SSD accelerated? It is my understanding that the capacity of the SSDs doesn't impact the overall capacity, but just influences the total amount of data that can be kept 'hot' on the SSDs.
I have been able to find guidance on the number of SSDs recommended per JBOD, but I've been unable to find any guidance on the size of the SSDs in relation to the size of the HDDs or total capacity of the mirrored space.