From owner-freebsd-questions Thu Sep 23 13: 4:26 1999 Delivered-To: freebsd-questions@freebsd.org Received: from mtaproxyin.MTA.NET (mtaproxyin.mta.net [207.155.61.169]) by hub.freebsd.org (Postfix) with ESMTP id B325116108 for ; Thu, 23 Sep 1999 13:04:18 -0700 (PDT) (envelope-from AndersonD@MTA.NET) Received: by MTAPROXYIN with Internet Mail Service (5.0.1460.8) id ; Thu, 23 Sep 1999 13:04:29 -0700 Message-ID: <48506CC52C52D3119B4300508B0903B514B5E5@EXCHANGE10> From: "Anderson, Douglas" To: "'FreeBSD-questions@FreeBSD.org'" Subject: vinum raid 1... Date: Thu, 23 Sep 1999 13:04:11 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.0.1460.8) Content-Type: text/plain Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In a two (physical) drive mirrored system what would be the impact of putting each drive on its own scsi channel when using a two channel scsi u2 controller? Would this reduce or eliminate the write bandwidth penalty? Again, assuming the same setup - would vinum just alternate drives on successive reads or... or can vinum read concurrently from both drives? I am attempting to decide whether to implement mirroring or simply split data files and system/swap files between drives. Space is not an issue. I have mild concerns regarding redundancy but want to minimize performance losses in a small system which will employ a SQL server with a moderate size database. Reads/writes will occur on a 98%/2% ratio but relational joins will occur continuously. Any advice would be appreciated. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message