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Thanks, I suppose what I'm trying to gain is some clarity on what choice is best for a given application. How do I know if it's better for me to use a raid card or not, to include flash-cache on it or not, to use ZFS or not, when combined with a small number of SSDs in Replica 3. On Mon, Apr 9, 2018 at 10:49 AM, Alex Crow <acrow at integrafin.co.uk> wrote: > On 09/04/18

On 09/04/18 16:49, Vincent Royer wrote: > > > Is a flash-backed Raid required for JBOD, and should it be 1gb, 2, > or 4gb flash? > > RAID and JBOD are completely different things. JBODs are just that, bunches of disks, and they don't have any cache above them in hardware. If you're going to use ZFS under Gluster, look at the ZFS docs first. Short answer is no.

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