On Sat, 11 Sep 2004 19:02:39 +0300 Mika Liljeberg <mika.liljeberg@xxxxxxxxx> wrote: > 1) Does the journaling code spread write accesses to the journal device > evenly, as I hope, or are there blocks that are particularly "hot"? > I.e., do I have to worry about the flash device dying quickly because of > frequent erase/rewrite cycles to a small number of blocks? Any smart enough journal device should do this internally. Journal, by its nature, is like a circular file. Can't say much about how are its i/os layed out on disk, but it shouldn't matter really. > 2) Currently, the main drive seems to spin up within 60 seconds after a > write access. I would like the checkpointing to occur only when the > journal device is getting full. How can I tune this? Check vm.laptop_mode and vm.bdflush sysctl settings or their appropriate /proc entries and elvtune command. -- Jure PeÄar _______________________________________________ Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
