From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 30589 invoked from network); 19 Jan 2023 02:19:22 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 19 Jan 2023 02:19:22 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id F062A423E3; Thu, 19 Jan 2023 12:19:15 +1000 (AEST) Received: from mail-pg1-f176.google.com (mail-pg1-f176.google.com [209.85.215.176]) by minnie.tuhs.org (Postfix) with ESMTPS id B2604423E0 for ; Thu, 19 Jan 2023 12:19:12 +1000 (AEST) Received: by mail-pg1-f176.google.com with SMTP id 7so423894pga.1 for ; Wed, 18 Jan 2023 18:19:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=deitygraveyard.com; s=google; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=6VSyWn4QBCqODQlNlHpSsh7kFWmQPXgQ/MEtKgb+RuA=; b=f0VByp+anX1yJFPwyCrKjh0KMWSAJQg4dzZbcGAmLqATjgSp4TQQfDWUCcMWF/js8/ d4F2E0Tlq3ClOwebM0/A+C9kRC6/3VhY0fdoZQLjEDhD4rA3O5sguMgbIH8LZJj8H/NO KXh2Y40Vc7K1rAknKEk1sdWJ1y3a9+Y8oD+krE9xU9hgf+s6nvNKkfUBAa+2x3EBzb0g EYGZ07GbOBOG3UEW9ZM9dEjEx3vRw1TOQhIcfzOEuE2SoMOcV0mUQ4NqpttUXaGUE/wg I0vYrAZrrvuXRXeJYXG0CQZ+tBHoJDi2Wn2PCCrTNTrY/prM/aPV0leNqIwYL3rzIncB 1pww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=6VSyWn4QBCqODQlNlHpSsh7kFWmQPXgQ/MEtKgb+RuA=; b=59it6WylSv+H82Y7M6xn7FR4o/ku08p9q9I6ivMzVJEPb50YCoYJYywI4PRlzfgK96 ZLWe4mlRv/uE+zLahVtjqP9cAu2vM+tFRsgsSUu3WBn3+Od2gJrQjKv5jpe1wtOwya+8 hCtOT7whagqsq7+M4hWFpqfgoQqz0eMj5G1lu+cjLEslo6vrzajx5iw2sjjPJfY3aPzW 0W7HboNR6NKfAPxAJXq6RLjFwqKIgY6YuBRZnM8uZAjE9UClH7Qf5kAJK5btE1Hj/hv6 Qak3xPOus3nwvi6iQpGrXcozeYh7IuxZ5h8dRK9LuTXy/L5pOhl6jcUf/9t4tPHdPDJM /myg== X-Gm-Message-State: AFqh2krcnc12DrQU+q3NyMn2y/6XwMSPlRgBeLPWFbr45wV8Aftd/Rn3 bArUuGuOJgb3U9wV9S8t9STdoVvrUpD+QSr9KR5BDQ== X-Google-Smtp-Source: AMrXdXum8Tyxr6z150q9E+ieEKb9Pm4e+1KbtxmFxXgFvzqeNYy0NyjyTZ1N7D9e0nFy477ecKphGrEFoaUvmG7UJH8= X-Received: by 2002:a05:6a00:420a:b0:58d:be68:dac7 with SMTP id cd10-20020a056a00420a00b0058dbe68dac7mr700851pfb.18.1674094692276; Wed, 18 Jan 2023 18:18:12 -0800 (PST) MIME-Version: 1.0 References: <202301180943.30I9hrOw030485@freefriends.org> In-Reply-To: From: Jim Carpenter Date: Wed, 18 Jan 2023 21:17:46 -0500 Message-ID: To: "Theodore Ts'o" Content-Type: text/plain; charset="UTF-8" Message-ID-Hash: 677G2RIGHBW7QXWREAR6ACYKQVQ5CXHM X-Message-ID-Hash: 677G2RIGHBW7QXWREAR6ACYKQVQ5CXHM X-MailFrom: jim@deitygraveyard.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: tuhs@tuhs.org X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: AIX moved into maintainance mode List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Wed, Jan 18, 2023 at 4:20 PM Theodore Ts'o wrote: > Just coincidentally, there is currently discussion in Linux kernel > circles about whether it's time to drop support for JFS. JFS was > originally from OS/2 and then ported to Linux and AIX, although JFS > for Linux and JFS2 for AIX have diverged. JFS has been in maintenance > mode in 2008, and the number of users is close to zero at this point. Well the original JFS was introduced with AIX 3.1 in 1990. A new JFS started from that and was introduced with an OS/2 in 1999 and made its way back to AIX. >From the 12/16/2002 JFS mini-FAQ: Q1. What is the history of the source based use for the port of JFS for Linux. A1. IBM introduced its UNIX file system as the Journaled File System (JFS) with the initial release of AIX Version 3.1. This file system, now called JFS1 on AIX, has been the premier file system for AIX over the last 10 years and has been installed in millions of customer's AIX systems. In 1995, work began to enhance the file system to be more scalable and to support machines that had more than one processor. Another goal was to have a more portable file system, capable of running on multiple operating systems. Historically, the JFS1 file system is very closely tied to the memory manager of AIX. This design is typical of a closed-source operating system, or a file system supporting only one operating system. The new Journaled File System, on which the Linux port was based, was first shipped in OS/2 Warp Server for eBusiness in April, 1999, after several years of designing, coding, and testing. It also shipped with OS/2 Warp Client in October, 2000. In parallel to this effort, some of the JFS development team returned to the AIX Operating System Development Group in 1997 and started to move this new JFS source base to the AIX operating system. In May, 2001, a second journaled file system, Enhanced Journaled File System (JFS2), was made available for AIX 5L. In December of 1999, a snapshot of the original OS/2 JFS source was taken and work was begun to port JFS to Linux. Jim