June 22, 20197 yr Has anyone done this? I'm thinking about setting one up. I'm not sure yet how I'd make it persistent, but assuming I can it would be great for VM's and docker I think.
June 22, 20197 yr 6 minutes ago, Marshalleq said: Has anyone done this? I'm thinking about setting one up. I'm not sure yet how I'd make it persistent, but assuming I can it would be great for VM's and docker I think. Not sure what you mean by mirror, but for VM's and docker you can use a cache drive, or install unassigned devices plugin and mount a drive for VM's and docker.
June 22, 20197 yr Author Yes, I'm aware - I posted about this elsewhere but no reply cause I gave too much detail I don't want to use my existing cache drive (BTRFS Raid-1), the SSD endurance won't handle the VM's and dockers I have which are constant IO. I had one in unassigned devices (enterprise grade 1TB Samsung), but it died. So I thought how can I get redundant SSD's without having to sell / throw away my current cache drives which are perfectly good? So I figure an additional standard Raid-1 Mirror, which somehow I have to mount in Unraid, since unraid doesn't as far as I know provide this capability through the GUI.
June 23, 20197 yr Community Expert 6 hours ago, Marshalleq said: So I figure an additional standard Raid-1 Mirror, which somehow I have to mount in Unraid, since unraid doesn't as far as I know provide this capability through the GUI. Are you talking about getting another SSD to implement this mirror? If so there are forum posts about how to create a BTRFS RAID1 style mirror from the command line and then mounting this under Unassigned Devices. I have not done this myself but as I understand it, it is only the creation stage that needs to be done from the command line and once created Unassigned Devices can handle the mounting/unmounting.
June 23, 20197 yr It is also possible to set up a cache pool as BTRFS RAID1. This is supported from the GUI. I have 4 SSDs in the cache pool set up as RAID10 (to have redundancy and performance boost)
June 23, 20197 yr Community Expert https://forums.unraid.net/topic/46802-faq-for-unraid-v6/?do=findComment&comment=462135
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