From owner-freebsd-questions Tue Apr 16 06:11:12 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id GAA10435 for questions-outgoing; Tue, 16 Apr 1996 06:11:12 -0700 (PDT) Received: from bsd.tseinc.com (bsd.tseinc.com [199.217.203.1]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id GAA10426 for ; Tue, 16 Apr 1996 06:11:09 -0700 (PDT) Received: from ws2.tseinc.com (ws2.tseinc.com [199.217.203.22]) by bsd.tseinc.com (8.7.5/8.6.12) with SMTP id IAA02239 for ; Tue, 16 Apr 1996 08:13:34 -0500 (CDT) Date: Tue, 16 Apr 1996 08:13:34 -0500 (CDT) Message-Id: <199604161313.IAA02239@bsd.tseinc.com> X-Sender: jlwest@bsd.tseinc.com X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: freebsd-questions@freebsd.org From: "Jay L. West" Subject: adaptec 1522 support Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I'm using an adaptec aha-1522a controller for a 4mm tape backup (disks are ide). I noticed in the 'controller aic....' that no dma channel is specified, thus I suspect the controller is 'throughput challenged'. I then saw the handbook mentions that controller with the text '(SLOW!)' appended . Backup speed isn't that important on this system but I don't know what they mean by 'slow'. Does anyone have comparative info say between a 1522 and 1542? Is it slow in relative terms or 'brutally unusably slow' ? Anyone have any advice/input on this? Jay West