On Thu, 14 Feb 2019, John Petrini wrote: > Cost and available disk slots are also worth considering since you'll > burn a lot more by going RAID-1, which again really isn't necessary. > This may be the most convincing reason not to bother. Generally speaking, if the choice is between a 2 RAID-1 SSDs shared by 6 HDD OSDs, or each of those SSDs shared by 3 HDD OSDs, I'd take the latter. Especially with BlueStore, which can make good use of the doubled capacity to keep more metadata on fast storage. sage
