From owner-freebsd-geom@FreeBSD.ORG Mon Sep 24 06:37:48 2012 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BD0F3106564A for ; Mon, 24 Sep 2012 06:37:48 +0000 (UTC) (envelope-from jacks.1785@gmail.com) Received: from mail-ie0-f182.google.com (mail-ie0-f182.google.com [209.85.223.182]) by mx1.freebsd.org (Postfix) with ESMTP id 8941C8FC0A for ; Mon, 24 Sep 2012 06:37:48 +0000 (UTC) Received: by ieak10 with SMTP id k10so9829669iea.13 for ; Sun, 23 Sep 2012 23:37:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=VEARH/ug3fYEWhJsg1NLNh/7w+yx8nBIf+MHJL86UiA=; b=E1Qyi5KftaS3mKb2lFWP7olGp2grO3FlyepPljBWAXnlpvHpj0ydEHUxQBf+qukFmf BAfHFFKgITB1xWkWq/3cizhDmO+d2hf+veycYBn7pdg4VmU79Rqd09Rals77GoQNQHy7 1FFIy485V0mGZK1DZp77Lb6hzXOLgLDNZBh40j0vrH2Ii4V9/5K2AIOeiAiHlGajGtbU 0PG20eioo534XdrCnQ+b2BIX++eI/QOgv6TjKwmrlS6Sn2ye2pXzgndGdZTqlrmvZhys qqoKDmtVGZZ+sBXIntGayIGCX5uYoH9Sp7Lu/AuYjL3JGWTf9K/Avf1Gx8tRwcGO/oGl iJ4w== MIME-Version: 1.0 Received: by 10.50.180.169 with SMTP id dp9mr4342876igc.8.1348468667766; Sun, 23 Sep 2012 23:37:47 -0700 (PDT) Received: by 10.64.44.105 with HTTP; Sun, 23 Sep 2012 23:37:47 -0700 (PDT) Date: Mon, 24 Sep 2012 12:07:47 +0530 Message-ID: From: Jack To: freebsd-geom Content-Type: text/plain; charset=ISO-8859-1 Subject: GEOM tasting behaviour X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Sep 2012 06:37:48 -0000 Hi all, I'm little bit unclear about the GEOM tasting behaviour. It would be helpful if someone could clarify it. Is it true that GEOM layer will always taste the (hard drive/tape drive)device whether we access device via cam pass driver or do block access. In other words, say if we never do a block access(ie via da/ada/sa devices) on a particular device, and we only access this device via cam pass driver, will then GEOM ever taste(e.g. for partition table, etc. or for other purposes) this device.? or is it something like, as soon as the device is attached, geom layer will always taste it - it doesn't matter how we access the device. Regards. -- Jack