I'm planning on upgrading my home file server with Storage Spaces because I always end up having to add disks to it, and I like having a single large logical disk instead of having to split my files between drives in fairly random ways.
Can someone please validate that the way I intend to go about it is OK ?
My server currently has 2x3TB, backed up to 2 external USB HDs. I'll be adding a 4TB HD, plus another one for backup. I'm getting a 4-drive external USB enclosure for the backups, since messing with 3 separate drives feels... messy.
My main concern is that I'll have to add disks to the storage space one-by-one. I'll start off with the backup disks:
1- Put new 4TB-1-backup disk in enclosure
2- create single-drive (for now) Storage Space on that 4TB-1-backup drive (no resiliency since it's non-critical media files and I back them up weekly)
3- move data from 3TB-1-backup to 4TB Storage Space
4- move 3TB-1-backup HD to enclosure, add it to the Storage Space (so 7GB-overhead). Data on it gets nuked but it's already on the 4TB Storage Space, and on the server.
5- repeat with 3TB-2-backup: move data to SS, add drive to SS (end up with 10GB-overhead, so around 9GB I guess ?)
6- wait a bit, test, test on other PC
7- repeat procedure with main data (not backups) with the 2 old 3TB and 1 new 4TB disks inside my server
Is that a sound way to go about it ?
Will data automatically re-stripe when I add new drives ? If not, is there a manual command to force Storage Spaces to re-stripe the data amongst all drives ?
Thanks for your input,