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- Path: sparky!uunet!psinntp!eye!paul
- From: paul@eye.com (Paul B. Booth)
- Newsgroups: comp.sys.hp
- Subject: Re: network backup failures
- Message-ID: <1992Sep15.111309.23625@eye.com>
- Date: Tue, 15 Sep 92 15:13:09 GMT
- References: <1992Sep14.093105.3982@pollux.lu.se>
- Organization: 3D/EYE, Inc. Ithaca, NY
- Lines: 38
-
- In article <1992Sep14.093105.3982@pollux.lu.se> peter@astol.astro.lu.se (Peter Linde) writes:
- >
- >
- >Dear net..
- >
- >We have one 720, one 835 and one Sun-3 sharing eachothers disks via NFS.
- >The 720 has a DAT (with compression), which we want to use to backup all
- >file systems on all machines in a single operation. The amount is about
- >1.2 Gb; 150000 files. I have the following experiences:
- >
- > sad experiences excluded.....
- >
- >It seems then that no simple solution exists to our backup problem. Do
- >I have to sacrifice security by implementing a non-supported
- >modification of the kernel (allowing NFS root access), or do I have to
- >spend thousands of dollars to buy Omniback, just in order to be able to
- >do a decent backup?
- >
- Have you considered using GNU tar? It understands networked dat drives
- (typical command line: tar cvf remote_node:/dev/rmt/0m files) and it will
- build on most any machine you want. It also handles incremental backups and
- the price is right.
-
- Have your 720 spawn gtar jobs to the other 2 machines. Transfer rates are
- quite a bit faster than you'll see if you try to access the remote files via
- nfs.
-
- A faster-still option might be to use rdump instead of gtar, but I can't
- remember off the top of my head whether the Sun has rdump or if it's hp
- compatible. Anybody know?
-
- Regards-
-
- --
- Paul B. Booth (paul@eye.com)
- -------------------------------------------------------------------------------
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