unmesh Posted October 19, 2014 #1 Posted October 19, 2014 I have Xpenology now running on two 64-bit machines. They have Intel Gigabit NICs as does my PC running Windows 7 and they are all on the same Gigabit switch. I can get file copy speeds of close to 100MB/s between my PC and either of the NAS units using Windows Explorer to do the drag-and-drop. However, if I mount one of the NAS volumes in File Station of the other NAS and do a drag-and-drop copy within File Station, the transfer performance is halved! CPU utilization is negligible. Does File Station use a different (and underperforming!) protocol than the CIFS/SMB between Windows and the NAS? How might I get the performance to improve?
unmesh Posted October 20, 2014 Author #2 Posted October 20, 2014 I tried rsync but the transfer performance was the same while the CPU utilization went up, especially on the NAS from which the data was being read. A Web search revealed that a performance boost could be had for compressed files by reducing the amount of compression being attempted by rsync and my transfer speed is now around 100MB/s You need to switch from the default zlib compressor to arcfour to turn off compression, as in (boldface for emphasis): rsync -aivx -W -e 'ssh -c arcfour -o Compression=no -x' 192.168.1.205://volume1/Share1/Videos . I'm still curious as to what is happening with drag-and-drop in File Station
stanza Posted December 6, 2014 #3 Posted December 6, 2014 yes speed of SMB copy from one Xpenology to another is pretty bad. I work around it by using the backup and replication app backup from one box to another, then just move the folders / files you will get full speed of the network this way. eg SMB copy = approx 50-60mb/s backup (which is really rsync) = 115-120mb/s .
Recommended Posts