Adding a new disk drive to a Synology 2-bay drive
I guess it is not possible. I had to take backup of the data to a external USB drive, and then recreate the volume using both the harddisks. And then copy back the data into the new volume.
Now its working fine.
I know you found a solution, but in case others read this, they should know that it ought to be possible to expand the existing volume (or disk group) - see this Synology tutorial for the details: https://www.synology.com/en-global/knowledgebase/DSM/help/DSM/StorageManager/storage_pool_expand_add_disk
In particular beware that the new disk you add to the volume has be at least the same size as the existing disk in your volume - otherwise you will not be allowed to expand your existing volume. From the Synology link:
- For SHR: The capacity of the hard drive you wish to add must be equal to or larger than the largest hard drive in the volume or disk group.
- For RAID 5 and RAID 6: The capacity of the hard drive you wish to add must be equal to or larger than the smallest hard drive in the volume or disk group.
I had exactly the same issue:
- Synology DS213 with a 3 TB hard drive
- I was adding another harddrive of at least 3 TB
- Raid of type SHR (Hybrid)
It is now very easy to add the drive (I have DSM 6.0.2 for what it matters)
- Go to
Storage Manager>Volume - Click on
Manage - Select
Expand size(I know, this is very misleading) - Select the new hard drive
- Wait until the operation finishes: you can now see "with data protection of 1 disk fault-tolerance)
Note: you need to have at least the same size on the new drive and it's better to have similar model.
Cheers