On Fri, Feb 25, 2005 at 05:21:17PM -0800, Doug White wrote: > On Fri, 25 Feb 2005, Oliver Brandmueller wrote: > > > Under heavy load (I/O load on the disks constantly over 200 tps, average > > at about 250 tps, peaks over 600 tps) a random drive disconnects from > > the RAID 10. After removing the drive from the config and rescanning the > > bus, the drive does not show up anymore. The only way to get the drive > > back is to unplug the drive (or switch the computer off, so that power > > is removed). After that there is no problem to rebuild the RAID with > > the drive. > > We were having problems with this even under light load, with Western > Digital SATA disks (not Raptors I don't think). In some cases all of the > disks would drop off the array. It was determined to be an incompatibility > between the controller (8506, I believe) and the motherboard (Tyan S2721).
This is an other issue: 3Ware 8506 cards PCI timings are marginal and fail with some mainboards (mainly Tyan and Intel ones if I remember correctly). AFAIK, this is fixed with the 950x series. -- Francois Tigeot _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
