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- Path: sparky!uunet!vnet.ibm.com
- From: Mickey_Coggins@vnet.ibm.com
- Message-ID: <19930122.082438.527@almaden.ibm.com>
- Date: Fri, 22 Jan 93 17:08:37 CET
- Cc: feats@vtvm1.cc.vt.edu
- Newsgroups: comp.unix.aix
- Subject: Re: Backups for RS/6000
- Reply-To: Mickey_Coggins@vnet.ibm.com
- Organization: IBM
- Disclaimer: This posting represents the poster's views, not those of IBM
- News-Software: UReply 3.1
- References: <11283@vtserf.cc.vt.edu>
- Lines: 39
-
- In <11283@vtserf.cc.vt.edu> Steve Greenfield writes:
- >I have no tape drive attached to my machine. I can rdump to a RS/6000 in
- >the machine room that has an 8mm tape drive /dev/rmt0. But when you rdump
- >you can only dump one filesystem at a time. I would assume that you can
- >piggyback/stack the filesystems on a tape but I don't know how to set this
- >up and to use the tape to restore in case of an emergency.
- >Are there any other possibilities that other RS/6000 users have implemented?
- >
- >Stephen L. Greenfield Bitnet: FEATS@VTVM1
- >Virginia Polytechnic Institute ,/\ Internet: feats@vtvm1.cc.vt.edu
-
- Here's a trick. Create a named pipe on your system called /tmp/.fs.size
- with the following command: mknod p /tmp/.fs.size
- This name is used because the mksysb script won't back up any files called
- .fs.size (which is probably a bug, but let's not worry about it now).
-
- Do the mksysb to this named pipe: mksysb /tmp/.fs.size
-
- Now, just use rsh to copy the data from the named pipe to your remote
- machine with a command like this, all on one line:
-
- dd if=/tmp/.fs.size ibs=10k obs=512 | rsh RemoteMachine "dd ibs=512 obs=10k
- of=/dev/rmt0" #this must be all on one line, obviously
-
- Of course, this requires that you have rsh working, and that your tape
- drive is set to a block size of 512 bytes. (chdev -l rmt0 -a block_size=512)
- You'll also need to create the 4 boot/install diskettes to use with this
- tape. Type egrep "bosboot|dskt" /usr/lpp/bos/README | tail -4 to find the
- correct commands.
-
- Pretty easy, huh?
- --
- Mickey Coggins Mickey_Coggins@vnet.ibm.com
- +41-1-436-7274 / +41-1-436-8525 (fax)
- Hohlstrasse 560, CH-8048 Zurich, Switzerland
- _______________
- "All who have meditated on the art of governing mankind
- have been convinced that the fate of empires depends on
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