>>>>> "Steve" == Steve Lord <lord@xxxxxxx> writes:
Steve> OK, now to the crux of the matter, these mkfs options are not
Steve> going to help you achieve higher bandwidth, your hardware is
Steve> going to play the biggest part in this, so it is all really a
Steve> matter of budget. We have had a single file doing streaming I/O
Steve> at close to 100 Mbytes/sec on linux, however, that involved a
Steve> fiber channel connected JBOD running lvm on 8 10000 rpm scsi
MD RAID0, actually. I get slightly lower performance with LVM.
Steve> You should probably build an lvm volume striped across several
Steve> drives, the best stripe width is probably going to depend on
Steve> how the application does I/O, but it depends on how much
Steve> bandwidth you need to squeeze out.
Modern drives seem to like 64-128KB I/Os. The test Steve mentioned
above was done with a 64KB stripe unit and consequently 512 KB stripe
Martin K. Petersen, Principal Linux Consultant, Linuxcare, Inc.
SGI XFS for Linux Developer, http://oss.sgi.com/projects/xfs/