I have a 2TB MBWE2 as RAID 1 that has served well for some time and have how bought a second chassis that was originally a 4TB unit but has no HDDs. I plan to remove one of the HDDs from the 2TB unit (so a 1TB HDD) to use for setting up the 4TB unit using a new 2TB drive as the second drive. Once the unit is setup, then remove the 1TB drive and replace it in the 2TB unit and instal a matching second 2TB HDD in the 4TB unit. I figure that is the easiest way to bring the 4TB unit back to life rather than all the faf involved in seting up a new drive from scratch. I also realise the time it will take as I’l effectively be doing (potentially) three rebuilds.
I understand it is best to back up the data in the 2TB unit somewhere else before I start just as a safeguard.
Thanks in advance.