Slow USB 3.0 HD writes in Linux Mint 15
Just set up my file server at home with Linux Mint 15 64-bit. Everything was running smoothly. Since I still have some family members running Windows, I decided to set up Samba shares for them. No problems there either. But today, for no apparent reason, the writes to my 3TB WD external hard drive slowed to 20-50 kB/s. No typo. The drive is USB 3.0, I added a Sabrent USB 3.0 4-port card which worked right away, and just yesterday I was writing at over 100 MB/s. My first thought was that the problem was with Samba. So I brought the 250 MB file over on a flash drive and first copied it to my home folder which is on sda2, internal SATA. I got about 20 MB/s, not bad for a flash drive read. But then I moved the file over to the external drive. 20-50 kB/s again. So it's not Samba. I have a custom mount point set for it at /exthd which is easier for me to remember, maybe it's a problem with my mount settings? I just know the drive worked great yesterday. This machine stays on all the time as it is a file server with a few users. I also use it for DLNA streaming with XBMC. All that seems to work fine too, even though XBMC gets the movies and TV shows off the external hard drive. So it appears that reads are good, but writes are slow. I've tried unmounting, remounting, unplugging, replugging, nothing seems to help, short of maybe rebooting, but even then, it doesn't take long. I rebooted the server at 5PM yesterday and its crawling at 8AM today. Any ideas? Thanks!
Last edited by alexgayer85; 07-30-2013 at 10:34 AM.