Fuck it, weβll do it live!
Iβm the kind of #sysadmin who after doing a mostly complete backup decides to just live rebalance / from RAID1 to Single instead of swapping in a new larger ssd.
It does seem to be working fine, heck i didnβt even get a warning when i tried to do the data portion, only when i also wanted to switch the metadata from raid1 to single did it tell me iβd have to βforceβ something.
Worst case Iβll have roughly the same amount of downtime that i would if I went with a new drive/install, but so far its looking like I wont even need to reboot.