> Are you running all your filesystems with 64K blocks? Most of them, yes.
I did some lengthy performance test on various combinations of a RAID 5's stripe size and the file system block size (the results of which I posted on tech-kern). The main concern was whether the nightly backup (a TSM client running under linux32 emulation) would finish in time even when the file systems were getting full. So what I checked was, using a partial copy of the real data on the current file server, running a find -ls (simulating the phase the backup would stat which files to backup) and a tar cf /dev/null (simulating the pase the backup would actually read data). The winner was 64k fsbsize on 128SpSU (resulting in one fs block per stripe unit and four per stripe). > Almost nobody uses them. So what do people use, then? Apart from Linux, hardware RAID controllers, Cisco switches, HP printers, Dell servers and all the other things I don't?
