On 06/24/2010 09:49 AM, Andy Pace wrote: > When is a good time to defrag? Is it something I should cron (hourly? Daily?) to make sure files are evenly distributed amongst each brick? > > Files on our gluster infrastructure are going to be changing very often (xen sparse image files), and the last thing I want is a brick to become full, and having to take down VM's to distribute them to a less occupied brick. > > Defrag is only run when you are expanding existing subvolumes for distribute. Expansion has a caveat since the directories will not be distributed unless "scale-n-defrag" is run. But the files newly created in new directories will be redistributed properly, it is just for the older directories it won't happen. (Directories i mean "top level" directories). Regards -- Harshavardhana Gluster Inc - http://www.gluster.com +1(408)-770-1887, Ext-113 +1(408)-480-1730
