From owner-freebsd-questions@freebsd.org Sat Sep 12 01:11:43 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E89D9A01293 for ; Sat, 12 Sep 2015 01:11:43 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) Received: from alogt.com (alogt.com [69.36.191.58]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C70881B12 for ; Sat, 12 Sep 2015 01:11:43 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=alogt.com; s=default; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date; bh=G15Evp2drY1gTXWWYpYl5HQvqCG1QbpnqSEWLBHM4h4=; b=pZ6w1fKUUkAKNxCKSeNQU9Q4AFqK8Bo1u6OKVSgZ6tw8vluQVAje7b81Pe6d8MVVve+WXnm3J7+ixdKCm0Bm7Wj1ihER9q5g2EvBgviHDaCTaftFkSrpcF4Z0P02aRW0bcbfvDlbEZfsC7DxJM5tvqlLFsMUaI46z6KPHH/Rxk8=; Received: from [114.121.134.173] (port=22455 helo=X220.alogt.com) by sl-508-2.slc.westdc.net with esmtpsa (TLSv1.2:AES128-GCM-SHA256:128) (Exim 4.85) (envelope-from ) id 1ZaZLs-000ais-Q4; Fri, 11 Sep 2015 19:11:37 -0600 Date: Sat, 12 Sep 2015 09:11:30 +0800 From: Erich Dollansky To: "Chad J. Milios" Cc: "freebsd-questions@freebsd.org" Subject: Re: mdconfig creating file based memory disk Message-ID: <20150912091130.7bbaf72e@X220.alogt.com> In-Reply-To: References: <20150910111034.20b97c41@X220.alogt.com> <20150911060251.5cd303ba@X220.alogt.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - sl-508-2.slc.westdc.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - alogt.com X-Get-Message-Sender-Via: sl-508-2.slc.westdc.net: authenticated_id: erichsfreebsdlist@alogt.com X-Source: X-Source-Args: X-Source-Dir: X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Sep 2015 01:11:44 -0000 Hi, On Fri, 11 Sep 2015 18:16:32 -0400 "Chad J. Milios" wrote: > ggatel I think that plain old file locking would have done the job. md has the advantage of being real easy to use. Irony is that this 'feature' comes from md's origins. RAM exists only on a single location under one address in one machine. If nothing else is done, the requested memory is always assigned exclusively to one program. Erich