JFS needs to be defragmented?

[Dotan Cohen <dotancohen@gmail.com>]

This seems to imply that JFS needs to be defragged:
http://wiki.archlinux.org/index.php/JFS_Filesystem#Defragmenting_JFS
"JFS, like all file systems, will degrade in performance over time due
to file fragmentation. While there is in-place defragmentation code in
the JFS utilities, this is code held over from the OS/2 port and has
yet to be implemented."

There are links to these two sources:
http://docs.hp.com/en/5576/JFS_Tuning.pdf
http://www.mail-archive.com/jfs-discussion@lists.sourceforge.net/msg00573.html


-- 
Dotan Cohen

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