02-25-2021, 04:39 PM
Yes, you could theoretically do that and rebuild the first RAID every time you take drive off-site. But this is not really making a copy in a usable way. You would need to use a recovery app to actually get data off this travelling drive. Synology has a USB copy function. If you connect your external drive, it will automatically create a copy of 1st RAID or any other volume on this external drive. This will use far fewer system resources since it doesn't need to recreate a RAID.You can have several RAID and several volumes on a Synology NAS.Alternatively, you could get two NAS systems. each NAS would have its own IP. You could also automatically synchronise these two NAS for backup purposes.NAS should be always running. When choosing NAS drives like WD Red, will hibernate drives and NAS when it is inactive. This would save energy.I hope this helps.