On 10/17/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
Hi Matthew. I gave up on the PCI-express version of the card for the time being.
My contact at LSI hasn't gotten back to me.
The PCI-X running the same firmware works fine, except for the slow RAID of course. I still have the main problem I try to get to the bottom off, and that is that the RAID-1 volume da0 is very slow. - Slow with even just 1 disk. - Slow when sync completed or not. Without RAID configured , and having 2 disks mounted, the disks are fast ~ 30 Mbytes/sec The disks are Fujitsu SATA laptop drives.
Integrated Mirroring has always been a problem. For parallel SCSI, you have to negotiate with the physical drives themselves. This *shouldn't* be an issue with SAS, but you never know.
I was poking around the MPI libraries of Linux, and I see they have some extra entries related to SAS. Also the file mptsas.c in Linux sets up the link speed and so on on the PHY. Do not know if something there is needed yet. Any idea of where I can start looking for the problem ? - link speed - dma - caching - etc ..etc ..
Don't know yet. The RAID stuff for mpt was written solely for SPI. It's a miracle it works at all for SAS or FC. I have a sunfire4100 on loan which supports this and when I have a spare moment (hah) I'll look into it. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
