Xref: utzoo comp.unix.questions:15723 comp.unix.wizards:17699 Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.csd.uwm.edu!bionet!apple!oliveb!mipos3!omepd!merlyn From: merlyn@iwarp.intel.com (Randal Schwartz) Newsgroups: comp.unix.questions,comp.unix.wizards Subject: Re: 8mm tape length for dump Message-ID: <4810@omepd.UUCP> Date: 16 Aug 89 16:22:19 GMT References: <412@h.cs.wvu.wvnet.edu> <18999@mimsy.UUCP> Sender: news@omepd.UUCP Reply-To: merlyn@iwarp.intel.com (Randal Schwartz) Followup-To: comp.unix.questions Organization: Stonehenge; netaccess via Intel, Hillsboro, Oregon, USA Lines: 20 In-reply-to: chris@mimsy.UUCP (Chris Torek) In article <18999@mimsy.UUCP>, chris@mimsy (Chris Torek) writes: | In general, however, the average installation has less disk data | to back up than fits on a single one of these cartridges, so any | length close to infinity suffices. We have been using the command | | dump 0ufds /dev/tape/1n 6250 32000| | but the 32000 here is just a WAG, and depends on this `infinite | length' property. Our vendor told us to use 43000 for a density and 120000 for a length (for a 2-hour tape). That works out to about 1.3 GBytes (roughly infinity, yep :-). Just another system hacker, -- /== Randal L. Schwartz, Stonehenge Consulting Services (503)777-0095 ====\ | on contract to Intel, Hillsboro, Oregon, USA | | merlyn@iwarp.intel.com ...!uunet!iwarp.intel.com!merlyn | \== Cute Quote: "Welcome to Oregon... Home of the California Raisins!" ==/