Date: Sat, 3 Jan 2004 10:57:32 +0000 From: Scott Mitchell <scott+freebsd@tuatara.fishballoon.org> To: Eric Rescorla <ekr@rtfm.com> Cc: freebsd-questions@freebsd.org Subject: Re: Plan 9 style backup utility for FreeBSD? Message-ID: <20040103105731.GA14806@tuatara.fishballoon.org> In-Reply-To: <20040102172714.507A371B6@sierra.rtfm.com> References: <20040102172714.507A371B6@sierra.rtfm.com>
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On Fri, Jan 02, 2004 at 09:26:59AM -0800, Eric Rescorla wrote: > I'm finally getting to the point where my disk capacity massively > outruns my tape capacity, so I'm thinking of converting to removable > disk-only backup. I could just use Amanda to backup to disk, but I'm > intrigued by Plan 9's archival filesystem where backups from (say Jan 1, > 1999) would go in /1999/1/1 and you could just find the files directly > rather than grovelling through dump files. > > Is there some standard tool for doing this on FreeBSD? You can't just > do a direct copy cause this results in major disk space wastage so I'm > imagining you need to use hard links or something to keep the size down. Check out rsync and the "--link-dest=DIR" option. This will hardlink unchanged files to the previous copy in the link-dest directory, rather than copying the data again. Scott -- =========================================================================== Scott Mitchell | PGP Key ID | "Eagles may soar, but weasels Cambridge, England | 0x54B171B9 | don't get sucked into jet engines" scott at fishballoon.org | 0xAA775B8B | -- Anon
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