On Fri, Sep 03, 2004 at 12:40:49PM +0200, Richard Mayhew wrote: > I tried to format our 4 GFS partitions with a block size of 8192 (twice > the default) to correspond with the default raw block size on the SAN's > LUN's to do some performace comparisons with no success. Any block size > 1024*X < 4096 worked with no problems, anything larger than 4096 came > back with an error when trying to mount the file system. > > Any idea as to why there is a limit set to 4096? Linux filesystems can't have block sizes greater than the machine's page size. For x86 and x86_64 that's 4096 bytes. I've seen 16k pages on a IA64 box, so you can go larger there. -- Ken Preslan <kpreslan@xxxxxxxxxx>
