From owner-freebsd-questions Wed Nov 21 0:44:17 2001 Delivered-To: freebsd-questions@freebsd.org Received: from zang.com (zang.com [216.34.130.70]) by hub.freebsd.org (Postfix) with ESMTP id CE1F437B405 for ; Wed, 21 Nov 2001 00:44:14 -0800 (PST) Received: from localhost (johne@localhost) by zang.com (8.9.1a/8.9.1) with ESMTP id AAA25022 for ; Wed, 21 Nov 2001 00:44:14 -0800 (PST) Date: Wed, 21 Nov 2001 00:44:14 -0800 (PST) From: John Engelhart To: freebsd-questions@freebsd.org Subject: Performance problems with Adaptec 3210S controller in 4.4 Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello, I've just finished installing and migrating over to a new Adaptec 3210S controller card and I have to say, the performance is totally uninspiring. So uninspirining that clearly I have done something wrong. Setup: Tyan Tiger MP 2460 w/ dual MP 1800's MB PCI is 64bit/33MHz 1 gig ram 1 Adaptec 3210S controller 8 Seagate ST318452LW (the zippy fast 15K RPM ones) 4 to each channel RAID 0+5, 4 drives on channel A on RAID5 #1, ditto on B 64Kbyte stripe size Write-Back config (no battery back up yet, shipped wrong one) 128Meg cache 1 NetGear GA622T card 1 J-Random NVidia AGP card 1 IDE CDROM 1 IDE 60 gig drive Running 4.4 By all accounts, the RAID set up should be pretty darn quick. The PCI bus should be the limit, at around 250MB/sec. However, I'm lucky to see 30MB/s (as measured by iostat) off the thing. It's only slightly faster than the IDE drive. So... What am I doing wrong, here? newfs not done right (for starters, I did just a plain jane newfs).. RAID set up wrong? Expectations wrong? Heck, just one of those segate drives has a minimum sustained transfer of over 45MB/sec. Any thoughts/pointers/etc appreciated. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message