I have a raid6 with 7 devices which is larger than needed now. One disk needs replacement so I want to reduce the array to (un-degraded raid6) with 6 devices, send the removed drive for RMA and then keep the replacement disk as a cold spare until I need to grow the array in a few years. I will first resize (shrink) the fs, then reduce the array size (--array-size=). Finally I should reshape the array with --raid-devices=6, but I do not know how to nominate which of the 7 devices to remove. What is the command to use here? TIA -- Eyal at Home (eyal@xxxxxxxxxxxxxx)
