Well, after one day shy of three weeks of transferring files, the system finally finished transferring data from the backup server to the main RAID server Wednesday night. As I mentioned in another thread, I then tore down the LVM array, added two 1.5T drives, and rebuilt it as a 7 drive RAID 5 array. I formatted the new backup array as XFS, and allowed the array to resync. I am now using rsync to copy all the files back to the backup array from the main array, and all is looking very good. The rsync is reaching sustained peaks of over 420 Mbps at Layer II, and I can create and delete files - large or small - with impunity. Here are the results from concatenating three large files to one, then deleting the large file, all whie the rsync process is going on in the background. (Note the transfer rate did drop to under 100 Mbps while the file copy was going on, so it looks like it may the RAID array which limits the transfer speed. This is not surprising - especially since I am using a single inexpensive SATA controller and 3 port multipliers - but it also is not problematical.) The transfer should now take less than 2 days. RAID-Server:/RAID/Recordings/Lord of the Rings# time `cat "1 Lord of the Rings- The Fellowship of the Ring, The (Recorded Fri Apr 04, 2008, TNTHD).mpg" "2 Lord of the Rings- The Two Towers, The (Recorded Sat Apr 05, 2008, TNTHD).mpg" "3 Lord of the Rings- The Return of the King, The (Recorded Sun Apr 06, 2008, TNTHD).mpg" > testfile` real 71m8.154s user 0m2.568s sys 2m35.482s RAID-Server:/RAID/Recordings/Lord of the Rings# time rm testfile real 0m1.052s user 0m0.000s sys 0m0.004s The system copied three 20G files into a fourth 60G file in under 75 minutes, and then deleted the result in just over 1 second. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
