From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 757d1b83 for ; Thu, 11 Apr 2019 05:29:40 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 403C394EBB; Thu, 11 Apr 2019 15:29:39 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id C046694929; Thu, 11 Apr 2019 15:29:07 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id DE52E94926; Thu, 11 Apr 2019 15:29:04 +1000 (AEST) Received: from smtp-out-1.mxes.net (smtp-out-1.mxes.net [205.237.194.119]) by minnie.tuhs.org (Postfix) with ESMTPS id 52B4A94925 for ; Thu, 11 Apr 2019 15:29:04 +1000 (AEST) Received: from Customer-MUA (mua.mxes.net [10.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.mxes.net (Postfix) with ESMTPSA id 34BB927506; Thu, 11 Apr 2019 01:29:00 -0400 (EDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.1 \(3445.101.1\)) From: Ronald Natalie In-Reply-To: <3993.1554950225@cesium.clock.org> Date: Thu, 11 Apr 2019 01:28:57 -0400 Content-Transfer-Encoding: quoted-printable Message-Id: <0FA98B50-9800-48A8-8B19-D070D17767AF@ronnatalie.com> References: <3993.1554950225@cesium.clock.org> To: "Erik E. Fair" X-Mailer: Apple Mail (2.3445.101.1) X-Sent-To: X-Sender: ronnatalie.com Subject: Re: [TUHS] Unix filesystem semantics history - files with holes X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Define large? It appears that filesystems going back to Research V4 = supported sparse files. The maximum file size went up from 2**24 in = V6 to 2**32 in V7, and then broke that barrier in several of the = subsequent file systems. > On Apr 10, 2019, at 10:37 PM, Erik E. Fair = wrote: >=20 > When did the Unix filesystem add the semantics for "files with holes" = (large, > sparse files)? >=20 > Just an idle question that was sparked by a conversation I had today. >=20 > Erik