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 30982 invoked from network); 29 Jan 2023 11:08:19 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 29 Jan 2023 11:08:19 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id CF8C4424DB; Sun, 29 Jan 2023 21:07:40 +1000 (AEST) Received: from gateway11.unifiedlayer.com (gateway11.unifiedlayer.com [70.40.197.232]) by minnie.tuhs.org (Postfix) with ESMTPS id D619A424D9 for ; Sun, 29 Jan 2023 21:07:31 +1000 (AEST) Received: from atl3asocm02.websitewelcome.com (unknown [50.6.128.71]) by gateway11.unifiedlayer.com (Postfix) with ESMTP id EAA61200A01D9 for ; Sun, 29 Jan 2023 05:07:30 -0600 (CST) Received: from shared83.accountservergroup.com ([162.215.248.81]) by cmsmtp with ESMTP id M5X0pTF7UL4VsM5X0pZmsN; Sun, 29 Jan 2023 11:07:30 +0000 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=e-bbes.com; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=jToq+PkSyQ0vS0Tf+ssL3jk6DyvzOfJ/GoGtVpR/dVE=; b=3wr5aalq4y22tF4qqzxpTEzTsB 8GhekWOniPFiP7APhPFIIJ9rXpsRHbQI+5AOiah/4x3y/PNKn7P7Mg4Gvp1LhZnRRYGPaO8tQI6ea LHxORW7C3sePAmInvyLU96CC3pbsBGB7k8o02Fle7qeAnxBSxJyXt46ZiAHqHMtE+U0w0IR2u8R+Z cWwz8UtYQ9EZNps9L8+I+0nWkMR3bX3JstaTrwSzgJnVSY1Kqc9h++GYbQBsQvBPMBw7yhBoOJyAP mQoS6kwsl+JzxnqBzismNwfxACNFO5tW3/GAJmVvcHZNwGrqr7vUKR3nTA4iTjLUH/Gc5VSTuFVDv SC6H2FTg==; Received: from rrcs-108-176-122-118.nys.biz.rr.com ([108.176.122.118]:62625 helo=[192.168.1.125]) by shared83.accountservergroup.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1pM5Wz-000ia9-UH; Sun, 29 Jan 2023 05:07:30 -0600 Message-ID: Date: Sun, 29 Jan 2023 06:07:27 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Content-Language: en-US To: Kevin Bowling , Dave Horsfall References: <20230125203805.4762218C083@mercury.lcs.mit.edu> <7w8rhpdczd.fsf@junk.nocrew.org> <20230126105626.72CD922168@orac.inputplus.co.uk> <20230127135651.A70482135B@orac.inputplus.co.uk> <20230127161016.GF5393@mcvoy.com> From: emanuel stiebler In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - shared83.accountservergroup.com X-AntiAbuse: Original Domain - tuhs.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - e-bbes.com X-BWhitelist: no X-Source-IP: 108.176.122.118 X-Source-L: No X-Exim-ID: 1pM5Wz-000ia9-UH X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: rrcs-108-176-122-118.nys.biz.rr.com ([192.168.1.125]) [108.176.122.118]:62625 X-Source-Auth: emu@e-bbes.com X-Email-Count: 1 X-Source-Cap: ZW11YmVzO2VtdWJlcztzaGFyZWQ4My5hY2NvdW50c2VydmVyZ3JvdXAuY29t X-Local-Domain: yes Message-ID-Hash: D3LOTT4XIFAFLYZ5JXOUFVT4WOCPBXY3 X-Message-ID-Hash: D3LOTT4XIFAFLYZ5JXOUFVT4WOCPBXY3 X-MailFrom: emu@e-bbes.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: The Eunuchs Hysterical Society X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Setting up an X Development Environment for Mac OS List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On 2023-01-28 19:31, Kevin Bowling wrote: > I'm not sure about 8mm tape specifically but the Exabyte drives that > were common on 1990s UNIX systems failed a lot. > > There was a large proliferation of tape technology in the 1980s and > 1990s, many of them not great in any dimension. > > DLT, LTO, and especially the "enterprise" ranges from StorageTek or > IBM from any time period are all extremely reliable. The problem with the 4mm and 8mm was, they had this stupid rotating head (heli scan?), which was a pain in the neck. It was difficult to adjust, so you better read/wrote your tapes only Put a lot of mechanical stress on the tape Tape was thin, to have more capacity After all, it was consumer stuff, ported to the wrong environment 9track, DLT work differently, that why we still have a chance to read them :)