suppose I have /dir1 shared on one drive, and /dir2 shared on another. Can i use mergerfs to create a readonly combined share? (For write purposes I would write files to the drive that I wanted to directly through the discrete shares.) Does the mergerfs automatically stay updated if I upload files to dir1 or dir2? How much space does the mergerfs share directory need? Should I create it on the system drive or if on the same drive as dir1 or dir2, should it be excluded from the snapraid array?
Thanks