From owner-freebsd-questions Fri Aug 7 22:11:19 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id WAA00508 for freebsd-questions-outgoing; Fri, 7 Aug 1998 22:11:19 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from pn.wagsky.com (wagsky.vip.best.com [206.86.71.127]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id WAA00502 for ; Fri, 7 Aug 1998 22:11:17 -0700 (PDT) (envelope-from Jeff@Wagsky.com) Received: from [192.168.6.3] (mac.pn.wagsky.com [192.168.6.3]) by pn.wagsky.com (8.8.8/8.8.8) with ESMTP id WAA00742 for ; Fri, 7 Aug 1998 22:10:57 -0700 (PDT) (envelope-from Jeff@Wagsky.com) X-Sender: mailman@mail.pn.wagsky.com Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Fri, 7 Aug 1998 22:07:20 -0700 To: freebsd-questions@FreeBSD.ORG From: Jeff Kletsky Subject: multi-session dump on single tape Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I am running 2.2.6-STABLE and have an Archive Python DAT drive: ahc0 rev 1 int a irq 11 on pci0:13:0 ahc0: aic7850 Single Channel, SCSI Id=7, 3 SCBs ahc0: Host Adapter Bios disabled. Using default SCSI device parameters ahc0 waiting for scsi devices to settle (ahc0:5:0): "ARCHIVE Python 25501-XXX 5.45" type 1 removable SCSI 2 st0(ahc0:5:0): Sequential-Access density code 0x13, 512-byte blocks, write-enabled which seems to work fine for tar and a single dump, but I have not been able to determine the "magic" required to place multiple dump sessions on a single tape. I have tried the following, then using restore -t, restore -t -s 1, restore -t -s 2, with mt rewind and mt fsf thrown in liberally and in various combinations to see if the dump is there. mt erase dump -0au / works, but any of the following seem to leave only a single session on the tape mt erase dump -0au / dump -0au /var mt erase dump -0au / mt weof dump -0au /var mt weof mt erase dump -0au / mt eod mt weof dump -0au /var mt eod mt weof The drive is known to be working as expected by Dantz Retrospect (Mac) and NT Backup, as well as tar (though I don't recall trying multiple sessions before). Any suggestions would be most welcome. With 3.0 coming down the pipe, I'd like to have a *real* backup instead of tar... Jeff Kletsky To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message