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- Newsgroups: comp.unix.aix
- Path: sparky!uunet!cis.ohio-state.edu!magnus.acs.ohio-state.edu!merrick
- From: merrick@magnus.acs.ohio-state.edu (Tom Merrick)
- Subject: Re: MUltiple backups in a single tape.
- Message-ID: <1992Jul22.123127.28641@magnus.acs.ohio-state.edu>
- Keywords: backup, dump, restore
- Sender: news@magnus.acs.ohio-state.edu
- Nntp-Posting-Host: top.magnus.acs.ohio-state.edu
- Organization: The Ohio State University
- References: <1992Jul16.191929.15642@thunder.mcrcim.mcgill.edu>
- Date: Wed, 22 Jul 1992 12:31:27 GMT
- Lines: 34
-
- In article <1992Jul16.191929.15642@thunder.mcrcim.mcgill.edu> carlosp@McRCIM.McGill.EDU (Thunder Carlosp) writes:
- >
- >How can I squeeze multiple level 0 backups in a single 8mm tape?
- >
- >I tried to use tctl to skip my first dump file and dump the second one. However,
- >tctl sems to move forward but keep rewinding the tape. I tried to use
- >tapedevice /dev/rmt0.1 ( a non-rewinding device according to the man pages),
- >However, if I use this device I always get a read input/outout error while
- >trying to restore my data. A single dump/restore (or I should say backup/restore)
- >works fine, but I have not been able to skip the first dump file (it seems).
- >
- >Tapechk reports the existence of 2 file in good shape. However
- >
- >tctl -f /dev/rmt0 rew
- >tctl -f /dev/rmt0.1 fsf 1
- >restore -if /dev/rmt0.1
-
- You should always use the -s option on restore command when extracting files
- from a multiple file backup tape. For example:
-
- tctl -f /dev/rmt0 rew
- restore -s2 -if /dev/rmt0.1
-
- will do what you want to do.
- >
- >will produce input/output or tape error.
- >--
- >-----------------------------------------------------------------------------
- >Carlos Perez, Systems Administrator carlosp@mcrcim.mcgill.edu
- >McGill Research Centre For Intelligent Machines Phone: (514) 398-7155
- >3480 University St., McConnell Eng. R-414
-
- Tom Merrick
- Ohio State University
-