Date: Sat, 26 Feb 2005 10:56:50 +0100 From: Francois Tigeot <ftigeot@wolfpond.org> To: Doug White <dwhite@gumbysoft.com> Cc: Oliver Brandmueller <ob@e-Gitt.NET> Subject: Re: SATA RAID Support Message-ID: <20050226095649.GC6633@aoi.wolfpond.org> In-Reply-To: <20050225171508.U30975@carver.gumbysoft.com> References: <20050223204202.31797.qmail@web11604.mail.yahoo.com> <013301c51a8b$ed2ad230$0300000a@Uzi> <6.2.1.2.0.20050224153015.02be6df0@64.7.153.2> <20050225083339.GA5014@aoi.wolfpond.org> <20050225110543.GA70464@e-Gitt.NET> <20050225171508.U30975@carver.gumbysoft.com>
next in thread | previous in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050226095649.GC6633>