DS218J disk upgrade

[tmbi]

Hi. I have a client using a DS218J in their small office. Recently it has been reporting that it's running out of space (it has two 2TB WD Red disks in at present. and is showing as using 1.79TB of tthe available storage
I've bought a 4TB drive to increase the storage capacity but am a little unsure of the exact process required to replace one of the existing disks with the new one and give them more storage I've added a 4TB portable USB drive which I'm currently running a Hyperbackup task on, together with another Hyperbackup task to an offsite NAS, but after 14 hours neither of them report as having completed. I'm now wary of replacing the disk until the local backup has completely finished, in case I lose any data, either from the NAS itself or the ongoing backups. I id speak briefly to Synology Support, who suggested that I could just replace one of the disks and the volume should repair itself OK. The NAS is using SHR rather than RAID1 or RAID0 so I believe it should be ok to just go for the swap. Any experienced users advice would be very much appreciated. I realise the volume could take a few days to rebuild, although I wouldn't expect 4TB to take an excessive amount of time..

Any advice gratefully received

Cheers
Tosh

 

[Telos]

Swap both drives with larger drives (one at a time) and rebuild. Be sure backups are current prior to proceeding.

 

[Birdy]

And your Client should from now take always incremental backups using Hyper Backup.