https://bugs.kde.org/show_bug.cgi?id=342056
--- Comment #46 from empyreal <empyr...@ukr.net> --- USB Seagate Backup Plus Drive. I tried copy in Konsole, because I noticed slow copy in Krusader. Copy canceling in Krusader was slow too. After I canceled cp process in Konsole, I got Partition 1 does not start on physical sector boundary. Fixed issue in GParted by reformatting. It also realigned automatically. Somehow “HDD reset” on Windows and started working properly. I thought that everything is ok and left it to copy whole night on Kubuntu. Speed dropped and mess started again. It’s interesting whether it is hardware fault or software fault leading to hardware fault. Slow copying to USB drive is common problem on Linux and it should be addressed properly. It’s unacceptable that server system has issues with data transfers. GParted drive again in vain. Made things worse on Windows. Strange manipulations on Windows and I noticed that drive became responsive again. Checked it with SeaTools once again. Populated volumes info. Drive works fast but copy sucks. Offline. Disconnected USB drive. Booted Kubuntu. Waited for USB drive to cool down. Connected drive. Mounted. Tried copying. Works as expected! Booted Windows. 1 MB/s. Booted Kubuntu again. Copy on 2-3 MB/s speed. Could not Remove safely… Shutdown. Removed drive from case. Never believe SeaTools... USB controller is OK. Checked with other Seagate drive. Connected HDD to SATA port. GParted messaging about errors. dd everything. Successfully formatted drive. Problems with mounting in Kubuntu. I could create files on it as sudo su only. chown chmod remount - no result, except now sudo su can’t create anything too. Windows boots very slow with the drive. Connected hot, but copying sucks. Drive clicks like it constantly is reading smth. It behaves like this after unsuccessful mounting on Kubuntu, after copying/canceling on Kubuntu and reboot or PC hard reset from Kubuntu. On Windows it stopped clicking after a while. Windows detects hard drive as removable, despite it is SATA now. I need to Offline it as USB to mount rw file system on Kubuntu. Now I have ST4000LM024-2AN17V which can write with 1 MB/s speed at best on Windows. Kubuntu first copy starts fast, the slows down to zero. Second copy almost zero speed. And what happens next!!! //All drives are SATA. Faulty drive ST4000LM024-2AN17V. I test and copy to it. //Just booted Kubuntu. No copying sudo hdparm -Tt /dev/sdc /dev/sdc: Timing cached reads: 23030 MB in 2.00 seconds = 11531.43 MB/sec Timing buffered disk reads: 48 MB in 3.04 seconds = 15.78 MB/sec //Started copy process in Krusader. Starts fast and slows down. /dev/sdc: Timing cached reads: 24952 MB in 2.00 seconds = 12494.70 MB/sec Timing buffered disk reads: 268 MB in 3.06 seconds = 87.55 MB/sec //Started copy process in Krusader. Worked as expected O_O //Started copy process in Krusader. Worked as expected O_O sudo hdparm -Tt /dev/sdc /dev/sdc: Timing cached reads: 22382 MB in 2.00 seconds = 11206.40 MB/sec Timing buffered disk reads: 176 MB in 3.01 seconds = 58.46 MB/sec //Started copy process in Krusader. Worked as expected. 20 GB in 4 min. O_O Now I have ST4000LM024-2AN17V copying properly on Kubuntu or not? Any ideas? -- You are receiving this mail because: You are watching all bug changes.
