From owner-freebsd-hackers Fri Jul 19 10:38:34 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id KAA09919 for hackers-outgoing; Fri, 19 Jul 1996 10:38:34 -0700 (PDT) Received: from parkplace.cet.co.jp (parkplace.cet.co.jp [202.32.64.1]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id KAA09913 for ; Fri, 19 Jul 1996 10:38:32 -0700 (PDT) Received: from localhost (michaelh@localhost) by parkplace.cet.co.jp (8.7.5/CET-v2.1) with SMTP id RAA15621; Fri, 19 Jul 1996 17:32:44 GMT Date: Sat, 20 Jul 1996 02:32:44 +0900 (JST) From: Michael Hancock To: "Stephen F. Combs" cc: Amancio Hasty , davidg@Root.COM, Heo Sung Gwan , freebsd-hackers@FreeBSD.ORG Subject: Re: your mail In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Fri, 19 Jul 1996, Stephen F. Combs wrote: > I didn't notice the original post, but Sybase uses RAW disk i/o as the > preferred method for accessing database files (the files are just raw disk > partitions, owned by the 'sybase' user). The 'sybase' user is a normal > user, no special priv. This is under both SunO/S and HP-UX, don't know > about other unixes. Under Windows N/T it just uses regular files (NT > doesn't know about raw partitions!). Oracle uses raw disk partitions too and it implements an extent based object management system. SQL DB Servers are basically specialized OSes. Regarding multi-media, a specialized system would definitely give better performance, but it sounds like a bit of work. -mike hancock