ssd arrray with a hdd as the parity

[agentr14]

I would like to swap out my hdds for ssds but i want to leave in the hdd parity so that I can restore all the data back on to the ssd array. Im on 6.12 is this possible ? 

I believe so I just wanted to make sure before I go ahead 

Edited July 17, 2023 by agentr14

[itimpi]

Note that while you have a HDD as the parity drive the performance of all writes to the array will be limited by that.

[JorgeB]

And that you won't be able to replace a disk with an SSD of the same capacity, because Unraid partitions SSDs with a different starting sector making them a little smaller.

[agentr14]

so the only way to switch to all ssds is to copy everything off first ?

I was goin to use the parity hdd to but the data back on the ssds and then remove the parity .. will that not work ?

 

[agentr14]

if so that gonna suck cause the second nas that has all the back data also has all the ssds that I want to use 😬

[Kilrah]

It will work as long as the SSDs are smaller than parity (but at least as big as the HDDs they replace), which can be a bit of a pain since SSDs tend not to standardize on exact sizes as well as HDDs.

Edited July 17, 2023 by Kilrah