On Tue, Jul 16, 2002 at 01:27:24PM -0400, Chris Mason wrote: > On Tue, 2002-07-16 at 12:31, Joe Thornber wrote: > > > > Joe, are you absolutely sure these tests had the disk cache disabled? That's > > > the only hardware thing I can think of that would make a difference. > > > > Absolutely sure. Those figures were for a pair of PVs that were > > sharing an IDE cable so I can certainly get things moving faster. > > Some IDE drives ignore commands to turn off the write back cache, or > turn it back on when load gets high. > I have reproduced Joes flat graph with SCSI & Fibre-channel drives so I wouldn't read too much into his cabling :-) patrick _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
