From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oystein Viggen Subject: Re: Number of hard links limit Date: Tue, 03 Aug 2010 00:22:14 +0200 Message-ID: <0362zshcyx.fsf@msgid.viggen.net> References: <20100802114046.GA29926@lh.kyla.fi> <20100802130556.GF30325@jeru.org> <4ad406cb8ee6c52747b67b4c79a6d7dd@smtp.arbitraryconstant.com> <20100802215647.7466601d@simplux> <4C572DDC.5050108@robertoragusa.it> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 To: linux-btrfs@vger.kernel.org Return-path: List-ID: * [Roberto Ragusa]=20 > That means it would not work for my backup server. > At 4 backups per day, failure for filenames with 45 characters after = just > one year. IIRC, the limit on hard links is per directory. That is, if you put each hard link into its own directory, there's basically no limit to th= e amount of hard links you can make to one file. Thus, many generations of backup with BackupPC shouldn't trigger the problem, as each generation is stored in its own directory tree. The problem appears when your source data has many identical files in the same directory, since these would be deduplicated as hard links to the same file in the backup pool. =D8ystein --=20 This message was generated by a horde of attack elephants armed with PR= NGs. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html