Move repository from 3 drives to 2 larger drives

Question

Hi, 
 I currently have a Core (running RR 6.7.0.387) with the repository expanded across 3 drives. Those drives are approaching full capacity of 12 TB, so I purchased 2 x 10 TB drives to move the repository to. 
 From what I've read so far, the simplest solution is to stop the Core service, then copy the Repository folder on each drive to a new drive then label the new drives with the same drive letters as their corresponding old drive. 
 But I'm moving 3 drives that each has a Repository folder on it, to 2 drives. Is there a way to make this happen? 
 Thanks! 
 Andy

Victor.Portillo · Answer

Without the full knowledge of your environment, I will assume you had 3 disks and each disk had 1 volume only. Taking this as the base information what you can do is either: 
 
 Partition one of the new disk and have 2 volumes in it to emulate the old environment and leave the other one with a single volume.
 
 Assign the same letters that had before 
 Copy the repository information in the same order

Another solution would be to copy the repository information from 2 disks into 1 and then edit the repository registry located Computer\HKEY_LOCAL_MACHINE\SOFTWARE\AppRecovery\Core\Repositories

phuff · Answer

Are these internal drives to the server? It sounds like you are moving over a repository that was extended before, which does add a new complexity as if you copy over your current repo in the method you described the config will look for those separate locations. As Victor said, without the exact knowledge of the drive layout this is an assumption, however were these drives stand alone or did you RAID them? 
 Personally, depending on situation of course, I always found the easiest way to migrate a repo was to temporarily setup replication either to a VM or to a temporary machine that I threw RR on just to replicate the data over to it. Once it was sync'ed up, then on the source RR, stop the core service, delete the repo from the registry, fire up the service and 'open the existing repo' (if there are local disks you have to include the step of removing/adding the drives back yes). If you do use the replication method, make sure you either setup the same retention policy on both cores, or disable rollups during the data copy so the data is same.