Found the problem....I got a rotational drive, not ssd. Mark
On Fri, Jul 15, 2022, 12:15 PM Mark Phillips <m...@phillipsmarketing.biz> wrote: > Disks benchmarks 1/2 way done. > > Showing > Avg read 2.3 MB/sec > Avg write 1.8 MB/sec > Avg access time 450 msec > > Does this seem slow for a seagate 4tb USB 3 external drive? > > Mark > > On Fri, Jul 15, 2022, 11:53 AM Mark Phillips <m...@phillipsmarketing.biz> > wrote: > >> It may be a cockpit error. The USB drive is brand new, and I assumed >> formatted to vfat. It turns out it is ntfs. I reformatted the drive to >> ext4, and I am running benchmarks. >> >> Initial results from hdparm (on a different machine - SurfacePro 4 >> running Ubuntu >> Timing cache reads: 9598.53 MB/sec >> Buffered disk reads: 6.47 MB/sec >> >> Waiting for disks benchmark on the target machine. >> >> Mark >> >> On Fri, Jul 15, 2022, 10:21 AM Robert Citek <robert.ci...@gmail.com> >> wrote: >> >>> Indeed, that sounds really slow: >>> >>> ( 138GB * 1000MB/GB ) / (26hr * 60min/hr * 60s/min ) = 1.5 MB/s ~ 12 >>> Mbps >>> >>> That's in the USB1.x range. If you use USB3.0 and can get 100MB/s write >>> speed, you'd be done in about 6 hours. >>> >>> Have a look at hdparm to get some info on read/write performance of your >>> drive: >>> >>> >>> https://linuxconfig.org/hard-drive-speed-test-using-linux-command-line-and-hdparm >>> >>> Good luck and let us know what you discover. >>> >>> Regards, >>> - Robert >>> >>> >>> >>> On Fri, Jul 15, 2022 at 10:48 AM Michael Ewan <michaelewa...@gmail.com> >>> wrote: >>> >>> > Are you using a USB3 drive and a USB3 port, the speed of the interface >>> is >>> > what I would think of first. >>> > >>> > On Fri, Jul 15, 2022 at 8:41 AM Mark Phillips < >>> m...@phillipsmarketing.biz> >>> > wrote: >>> > >>> > > I have an Ubuntu 18.04 system with two drives in an lvm with one >>> logical >>> > > root partition. I am trying to back up the contents of the drives >>> (ie /) >>> > to >>> > > an external usb drive using rsync. It is taking a really long time. >>> After >>> > > 26 hours of continuous operation I have only transferred 138 GB out >>> of 2+ >>> > > TB, so I am looking at about 16 days to complete the transfer. >>> > > >>> > > My rsync command is: >>> > > sudo rsync --no-compress --info=progress2 -avAXEWSlHh >>> > > >>> > > >>> > >>> --exclude={'/run','/mnt','/swapfile','/boot','/dev','/proc','/sys','/run','/mnt','/media','/lost+found','/swapfile.extended','/tmp'} >>> > > / '/media/mark/Seagate Portable Drive/tsunami-backups-Jul_13_17-39/' >>> > > >>> > > Any suggestions on how I can speed this up and not lose any data? >>> > > >>> > > Thanks! >>> > > >>> > > Mark >>> > > >>> > >>> >>
