Problem: I have slow write speeds on my NFS NAS. I would like to improve write speed on my home server.
My typical use is: copy a 1-30gb file on my Mac laptop to my ubuntu server in one of two places: 1) temporary storage – server system folder (SSD) or 2) permanent storage (HDD – raid6 – 5x6tb units – 5400rpm)
Let's first tackle the SSD write speed:
the line in my export file is:
If I send a file and monitor the progress:
MBP:home hugh$ rsync -va --progress /home/Source/ /Volumes/Destination/ building file list ... blah blah sent 1233757345 bytes received 60 bytes 9753022.96 bytes/sec total size is 2487074514 speedup is 2.02
So I get 9.7 MB / s on an SSD. What can I add / remove from my export line to improve this?
Now for permanent storage:
The export line is:
If I move something from the transfer folder to the RAID:
sent 1,359,312,494 bytes received 38 bytes 209,125,004.92 bytes/sec total size is 1,358,980,577 speedup is 1.00
Well, the raid can write at ~ 210MB / s. But if I move something from my laptop to the raid:
sent 1099794896 bytes received 48 bytes 1532815.25 bytes/sec total size is 1099660496 speedup is 1.00
The speed is much slower (1.5MB / s). Now I know I need to remove the "sync" and wait for the raid to stop syncing (it's brand new), so I'll report when that changes.
If anyone has any recommendations on how to improve writing performance, I would be very grateful.