From mboxrd@z Thu Jan 1 00:00:00 1970 From: KELEMEN Peter Subject: Re: 3Ware 7506-8, anyone have any luck? I don't... Date: Fri, 15 Oct 2004 21:28:48 +0200 Sender: linux-raid-owner@vger.kernel.org Message-ID: <20041015192848.GD3035@inara.maison.net> References: <1097862002.13597.57.camel@tinny.home.foo> <20041015181205.GB3035@inara.maison.net> <1097864507.13828.70.camel@tinny.home.foo> <20041015184410.GC3035@inara.maison.net> <1097866503.13982.81.camel@tinny.home.foo> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <1097866503.13982.81.camel@tinny.home.foo> To: linux-raid@vger.kernel.org List-Id: linux-raid.ids * Scott T. Smith (scott@gelatinous.com) [20041015 11:55]: > then filter out email based on duplicate message-ids! :-P I would if the corporate Exchange would _let_ me have duplicates. It does not. Moreover, I'm setting Mail-Followup-To: which _you_ are not honoring. > When issueing random reads of 1 megabyte each, I get 2 > gigabits/sec from the Highpoint, and 1.5 gigabits/sec from the > 3ware, when using a single controller and 8 disks (WD 250GB). > No RAID, just JBOD mode, all disks in use at once. Cannot comment on this one, haven't done measurements myself. We don't use random I/O much. > the 8506 won't even let me set the disk up as a JBOD. In order > to zap it, I need yet another controller! Do it with the 9xxx. Interesting though... did you let 3ware know about it? (We do not have 8506s yet.) > That's the funny thing about the 3ware 12 disk controllers; they > don't even have the bandwidth to support all 12 disks! Theoretically you could get 12*50 MiB/s out from the disks. PCI limit is just 12% lower. Add processing overhead you are about to go. > It truly depends on what you want to use it for. If you want > RAID5, you most likely want a hardware solution, so yeah, 3ware > would be the way to go. Agreed. > If you want JBOD though, I'd go with Highpoint. Thanks for the data point. Peter --=20 .+'''+. .+'''+. .+'''+. .+'''+. .+'= ' Kelemen P=C3=A9ter / \ / \ Peter.Kelemen@cer= n.ch =2E+' `+...+' `+...+' `+...+' `+...+' - To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html