On Mon, 27 May 2002, Miguel Mendez wrote: > On Mon, May 27, 2002 at 06:02:23AM -0700, Cy Schubert - CITS Open Systems Group >wrote: > > > Did we see a difference in CPU utilization? No. However ODS and VxVM > > run below the kernel and cannot be measured by vmstat or sar, which is > > different to how vinum works because it is part of the kernel. > > I feel curious about this. Both ODS and VxVM are just kernel modules > that sit between hardware and the VFS layer if I'm not mistaken. What > makes them different than vinum?
I don't have experience with vinum, but we also experienced terrible performance with Sun's ODS and software RAID-5. We didn't notice similar problams with Veritas volume manager. I'm beginning to think it's peculiar to ODS, and that other software RAID-5 implementations probably work a lot better. -- Tod McQuillin To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-stable" in the body of the message
