Hello Everyone, I apologize if this is a duplicate topic, I searched for a bit and found some tips to increase speeds but never seemed to get much better performance.
I’m backing up about 7TB of data from a local disk to another local disk. Standard windows file explorer copies/moves from the disks max out at about 150MB/s. There seems to be quite a delay in the creation of the volumes. There’s about 20 sec of inactivity on the destination disk before each volume transfer begins, then about 5 seconds for a volume transfer itself; destination disk speed goes up to about 150MB/s writes, then back to zero for another 20 seconds while the next volume is created. I’ve tried lowering the block size to near the defaults with the same speeds. I also tried to remove any limits of volumes created; instead it seems the software just can’t make them fast enough as there is never more than 1 volume waiting in the asynchronous-upload-folder. Overall the speeds calculate to about 30~40MB/s because of the delays. Is this to be expected with a fast local destination or is there any way to get the volumes to build faster so that there’s a constant build up of volumes to be sent to the destination? I suspect many don’t notice this delay as they use Duplicati to backup to external sources (cloud providers) over their internet connection; this would of course allow volumes to build up since most internet upload speeds are well under 150MB/s.
Here are my details:
running Duplicati - 188.8.131.52_canary_2017-11-22
Encrypted Backup using AES-256
Volume Size: 1GB
Appreciate any replies