Date: Thu, 11 Oct 2001 15:16:34 -0600 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: Alexey Koptsevich <alex@astro.su.se> Cc: Scott Long <scott_long@btc.adaptec.com>, scsi@FreeBSD.ORG Subject: Re: one array from both channels in Adaptec 3210S? Message-ID: <200110112116.f9BLGYY01854@aslan.scsiguy.com> In-Reply-To: Your message of "Thu, 11 Oct 2001 23:09:49 %2B0200." <Pine.GSO.4.10.10110112308160.12138-100000@dioscuri.astro.su.se>
next in thread | previous in thread | raw e-mail | index | archive | help
>> It follows the law of dimishing returns. Every disk that you add will >> increase performance my a lower factor than the previous. You also >> have to remember that performace is also based on the PCI bus and >> the CPU on the controller. If the card is only in a PCI 33MHz/32Bit >> slot, you can only get 132MB/s max (actually much less than that in >> real life). > >And what is the throughput of 66MHz/32bit PCI on my Intel L440GX+ >motherboard? Supposedly the bridge used to get you those 66MHz slots has some very poor performance characteristics. You'd be better off using the 33MHz slots on your machine. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200110112116.f9BLGYY01854>