On 08/29/13 10:50, Tobias Reinhard wrote: > Hi! > > I would like to defrag the XFS partition on which my glusterfs brick is. > Normally no program cares about xfs_fsr. > > Just to make sure: is it "safe" to run xfs_fsr on a glusterfs brick > while everything is online or does any part of glusterfs gets confused? > > I have a two node replicated volume (if that is relevant) running > glusterfs 3.4 The GlusterFS server is all userspace. So, as long as you are not taking the underlying (XFS) filesystem offline, it won't care one bit. Though you might see a performance hit for anything doing I/O to the filesystem in question. Do you run your filesystems near full capacity? (wondering why you need a defrag.) -- Mr. Flibble King of the Potato People