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 14663 invoked from network); 29 Jan 2023 00:33:48 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 29 Jan 2023 00:33:48 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 3DDE94257B; Sun, 29 Jan 2023 10:33:11 +1000 (AEST) Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) by minnie.tuhs.org (Postfix) with ESMTPS id A793342577 for ; Sun, 29 Jan 2023 10:33:02 +1000 (AEST) Received: by mail-pl1-f181.google.com with SMTP id p24so8340690plw.11 for ; Sat, 28 Jan 2023 16:33:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kev009.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=KU2HrQXGmU6tE06+x4PRAPtpwhPc+8n5CZp5t57txGM=; b=LU3gLSPiCB759hEILQ821bes2lk6f7Wi0wiPqo2fwyhPIRdQ1jf7gr0wEhzfIw++XK NV9Bss0Q4zHP2n4U4vwr5n+K2eHuXy3QpgTT757h2Lq7xDYvg3k6AsUxhwNremxuC15T QVnPV9g2IEqb3TIRV/YSS8TqrM+Kn/0MVcsqQ= 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=KU2HrQXGmU6tE06+x4PRAPtpwhPc+8n5CZp5t57txGM=; b=ZIXMDTcjerKxuSnG+I1ELEghdNLJoeOU1UAEJ44ChUjeS9W9I4YjEPsnWu6RhzM/y6 7ssS5kkcjQm8RabjcvVGnX7M82EuApA84SkOrrqBiS+3t3sIX+56rHXOU89Eky1F4EJ2 uyXoyAgNc1LPh05ZoXvvoxVHMTdSieWK8AXrjjWdZlCTL7oBQ6aPv0nZapVpaFRQd1KS Hp45hde7rAkKNIrhVs5OcEG+qQvL48Uc54qqnbLAKjLvC4XQgx4kxOnNih5Y+CJC3BZa nToRqC7FzoimDnSRTFwQISn3AquXJRo2XG65/mq6wAXgkEOEq59wzkHTPb/YPOakSu6D SnPw== X-Gm-Message-State: AO0yUKVYH/y4p79Dnd96Cy3Z/lm3wMe+lKztHN/DlH2fdWLqIgrU6o2j ExyOHw72rluyCi1TBjCbI0ED9fx9S1ZRzfqsUH8aVw== X-Google-Smtp-Source: AK7set+zpqxE59wjNpeAaK648SRBb+RnuQREoTvNS1BW5lR3zv/nei+J/lrZjr9QYQKG7ILN6wAh5DjznvqxLM29VQY= X-Received: by 2002:a17:902:ab88:b0:196:1c5a:55cf with SMTP id f8-20020a170902ab8800b001961c5a55cfmr2411254plr.15.1674952322004; Sat, 28 Jan 2023 16:32:02 -0800 (PST) MIME-Version: 1.0 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> In-Reply-To: From: Kevin Bowling Date: Sat, 28 Jan 2023 17:31:49 -0700 Message-ID: To: Dave Horsfall Content-Type: text/plain; charset="UTF-8" Message-ID-Hash: ZNW7WXU7V6YJRYXLC54E7F7AI5HRD5PR X-Message-ID-Hash: ZNW7WXU7V6YJRYXLC54E7F7AI5HRD5PR X-MailFrom: kevin.bowling@kev009.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: 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. On Sat, Jan 28, 2023 at 3:16 PM Dave Horsfall wrote: > > On Fri, 27 Jan 2023, Larry McVoy wrote: > > [...] > > > I've never seen a more fragile system than those exabyte. By > > comparison, the old SCSI QIC 150s, while small, were industructible, I > > think you could have used the tapes as hammers and they'd still read. > > Same thing for 9 track. > > My experience with Exabytes was different; we used "data" tapes, not the > cheaper "video" tapes and had no problems over many years. > > In fact, in https://en.wikipedia.org/wiki/Data8 we see: > > ``The cassettes have the same dimensions and construction as the > cassettes used in 8 mm video format recorders and camcorders.'' > > In other words, they are not the same thing... > > -- Dave