Greetings Community,
I apologize up front if I missed the answer to this question in an obvious place:
Questions:
I am curious if OMV supports doing RAID 50 or stripped RAID 5 arrays?
Is this supported/advised against/etc?
Background:
I have noticed that the GUI interface has no problem with you creating two separate RAID 5 arrays, and then selecting both of those in a 3rd stripped array. I can imagine that there should be some performance increase, similar to the way ZFS does its vdevs. I have been looking for threads that discuss this or the physical disk limit for arrays. I looked through the RAID configuration section of the manual and didn't really see anything either. Is OMV limited only by MDADM? I haven't read everything on that yet.
I couldn't figure out how to add more than 8 or 10 disks to a RAID 10 array, and wondered if there was a limit, and if there is, I wonder if using RAID 50 or stripping across multiple RAID5/6 arrays would be a good way to get around that. Also, if you wanted to have a boat load of physical disks, most people accept that you shouldn't have an array with more than so many disks, otherwise it's less than optimal or there's greater risk for multiple disk failures in the array. Splitting into multiple arrays is the best way to mitigate that risk.
Thoughts?
Anyone doing this in production?
For the OMV team/devs: This is an amazing project, simple to use, slick interface. Nice job.
(Question above applies to future deployment)
Test System:
Using OMV 1.19 (fully patched)
HP DL 380 G4 / Intel Zeon 2.4 / 6GB RAM
Dual Broadcom NIC
72GB Ultra320 system drive
5x72GB Ultra320 for RAID5/6