RAID speculation

[smolkomartin1]

I wonder. If I have 2 SSD at RAID 0 and then have 1 HDD that will mirror (RAID 1) both SSDs.

Is it even possible?

 

Thanks.

[manikyath]

pretty sure that -if you even can- a raid 1 between different performance drives will do really wonky stuff.

 

raid 1 designed to write to two (or more) drives simultaniously, and not to buffer up writes, because one side is writing faster than the other.

fished this off of the wikipedia article on raid:

However, if disks with different speeds are used in a RAID 1 array, overall write performance is equal to the speed of the slowest disk.

they also add that read performance is usually about the sum of the drives.

[EmeraldFlame]

I wonder. If I have 2 SSD at RAID 0 and then have 1 HDD that will mirror (RAID 1) both SSDs.

Is it even possible?

 

Thanks.

This would be known as a RAID 10 or 1+0. It would work. However, you would actually lose speed doing this. The entire raid would be brought down to the performance of that single HDD.