On Wednesday 29 June 2005 23:59, Mark Miksis wrote:
Peter Arremann wrote:
Actually, I have some 9500s that are finally getting stable. Each new driver revision and each new firmware is better than the last and by now, I have no issues (also running the x86_64 but on amd hardware).
Thanks for the encouraging feedback. It appears that the driver in FC4 is a bit old (and doesn't seem to correspond to a 3Ware release). Are you running SMP?
Both - running an Athlon64, 32bit PCI slot, 2 mirrored drives and a quad opteron, pci-x, 4 raid 0 drives.
Anyone who asks me, usually gets a 8500 controller as recommendation because unlike the 9500s, those are actually rock solid. You should try the firmware updates and maybe the driver (if there is one newer than the one in the kernel you're running) and see if you can't get your box stable that way - as I said before, it worked for me.
I plan to compile the latest driver tomorrow...
The driver in the FC4 kernel is 2.26.02.002 (grep -i version /lib/modules/2.6.11-1.1369_FC4/kernel/drivers/scsi/3w-9xxx.ko) while the driver that amcc has is 2.26.03.015fw (grep TW_DRIVER_VERSION 3w-9xxx.c) Its not that great a difference but it might be worth it for you. Don't forget to check the firmware upgrades as well.
Also, you might want to get an AMD system next time if you have heavy IO and more than 4GB ram - the AMD iommu requires no bounce buffers...
Interesting. Actually, my IO needs are not *that* heavy, but I first encountered the problem when trying to restore a bunch of backups from my previous machine.
High is relative... Sometimes a simple script can create a ton of IO for just a few seconds and that can be enough. :-)
Peter.