Alan Brown wrote: > What happens if you just do block copies to the USB disk? > > We've found here that USB2 is quite slow for filestorage on linux systems > but I haven't had time to investigate why.
You mean like if I just cp -a my homedir to the USB disk? That is exactly what I did when I first plugged in the USB disk. It's blazing fast. Here's a test to provide quantifiable results: [EMAIL PROTECTED] WD_USB_2]$ time dd if=/dev/zero of=foo bs=1024 count=4096000 4096000+0 records in 4096000+0 records out real 4m23.296s user 0m3.520s sys 0m23.930s So it took 4 minutes and 23 seconds of wall clock time to write 4G of data to my USB disk. That comes out to 16M/s. And this was done while the very slow moving backup is going on. Overall I am quite impressed with USB2 on Linux! I unpacked the drive from the box, plugged it into power, plugged it into a USB port on my box, and FC4 found it and mounted it for me and the transfer rate is plenty fast. I love it when things "just work"! Another odd thing I noticed is that the backups do indeed start out very slow. Around 100k/s but over time (hours) creep up to 1.5MB/s. -- Tracy R Reed http://copilotconsulting.com ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today * Register for a JBoss Training Course Free Certification Exam for All Training Attendees Through End of 2005 Visit http://www.jboss.com/services/certification for more information _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
