Joanne

I tried running "xfs_fsr -t 18000" without specifying a /dev/md? so that it would start an automatic defrag of all xfs drives for 5 hours. I noticed it started defraging /mnt/disk1 instead of /dev/md1. Is it safe to let it continue on /mnt/disk1 ? I've noticed that if I specify /dev/md1 in the command line, it ignores the -t command (Which is normal apparently)

Thanks for the guide. I have been having a lot of buffering problems with some of my movies of late. So I decided to check fragmentation. OMG. I was told that Linux file systems don't suffer from fragmentation like NTFS. They can't be more wrong. One of my drives is 99.87% fragmentation. That is the worst fragmentation I have ever seen, on any system. This was is a 2TB drive with 350GB free. Can anyone explain why the fragmentation is so bad? 2TB HDD, 350GB Free, 99.86% Fragmentation root@Tower:~# xfs_db -r /dev/md6 xfs_db> frag actual 462546, ideal 636, fragmentation factor 99.86% Note, this number is largely meaningless. Files on this filesystem average 727.27 extents per file xfs_db> frag -d actual 27, ideal 26, fragmentation factor 3.70% Note, this number is largely meaningless. Files on this filesystem average 1.04 extents per file xfs_db> frag -f actual 462519, ideal 610, fragmentation factor 99.87% Note, this number is largely meaningless. Files on this filesystem average 758.23 extents per file xfs_db> 2TB HDD, 320GB Free, 99.33% Fragmentation root@Tower:~# xfs_db -r /dev/md5 xfs_db> frag actual 2299335, ideal 15320, fragmentation factor 99.33% Note, this number is largely meaningless. Files on this filesystem average 150.09 extents per file xfs_db> frag -d actual 522, ideal 460, fragmentation factor 11.88% Note, this number is largely meaningless. Files on this filesystem average 1.13 extents per file xfs_db> frag -f actual 2298813, ideal 14860, fragmentation factor 99.35% Note, this number is largely meaningless. Files on this filesystem average 154.70 extents per file xfs_db> 6TB HDD, 600GB Free, 95.48% Fragmentation root@Tower:~# xfs_db -r /dev/md4 xfs_db> frag actual 15899, ideal 718, fragmentation factor 95.48% Note, this number is largely meaningless. Files on this filesystem average 22.14 extents per file xfs_db> frag -d actual 33, ideal 28, fragmentation factor 15.15% Note, this number is largely meaningless. Files on this filesystem average 1.18 extents per file xfs_db> frag -f actual 15866, ideal 690, fragmentation factor 95.65% Note, this number is largely meaningless. Files on this filesystem average 22.99 extents per file xfs_db> 6TB HDD, 400GB Free, 98.56% Fragmentation root@Tower:~# xfs_db -r /dev/md3 xfs_db> frag actual 500672, ideal 7220, fragmentation factor 98.56% Note, this number is largely meaningless. Files on this filesystem average 69.35 extents per file xfs_db> frag -d actual 391, ideal 370, fragmentation factor 5.37% Note, this number is largely meaningless. Files on this filesystem average 1.06 extents per file xfs_db> frag -f actual 500281, ideal 6850, fragmentation factor 98.63% Note, this number is largely meaningless. Files on this filesystem average 73.03 extents per file xfs_db> 2TB HDD, 350GB Free, 76.99% Fragmentation root@Tower:~# xfs_db -r /dev/md2 xfs_db> frag actual 153132, ideal 35233, fragmentation factor 76.99% Note, this number is largely meaningless. Files on this filesystem average 4.35 extents per file xfs_db> frag -d actual 1374, ideal 1354, fragmentation factor 1.46% Note, this number is largely meaningless. Files on this filesystem average 1.01 extents per file xfs_db> frag -f actual 151758, ideal 33879, fragmentation factor 77.68% Note, this number is largely meaningless. Files on this filesystem average 4.48 extents per file xfs_db> 6TB HDD, 1.1TB Free, 36.5% Fragmentation (Contains all my AppData, dockers, ect and some Movies) root@Tower:~# xfs_db -r /dev/md1 xfs_db> frag actual 2846177, ideal 1807222, fragmentation factor 36.50% Note, this number is largely meaningless. Files on this filesystem average 1.57 extents per file xfs_db> frag -d actual 53083, ideal 40568, fragmentation factor 23.58% Note, this number is largely meaningless. Files on this filesystem average 1.31 extents per file xfs_db> frag -f actual 2793094, ideal 1766654, fragmentation factor 36.75% Note, this number is largely meaningless. Files on this filesystem average 1.58 extents per file xfs_db> 2TB HDD, 600GB Free, 3.96% Fragmentation (This is the newest drive on the server) root@Tower:~# xfs_db -r /dev/md7 xfs_db> frag actual 2954, ideal 2837, fragmentation factor 3.96% Note, this number is largely meaningless. Files on this filesystem average 1.04 extents per file xfs_db> frag -d actual 122, ideal 109, fragmentation factor 10.66% Note, this number is largely meaningless. Files on this filesystem average 1.12 extents per file xfs_db> frag -f actual 2832, ideal 2728, fragmentation factor 3.67% Note, this number is largely meaningless. Files on this filesystem average 1.04 extents per file xfs_db>

I am in the later stages of writing a plugin for unRAID V5.0b that capulates the cache_dirs script into the V5.0 compatible plugin with a menu system. Anyone see any value in this.