Date: Mon, 28 May 2012 11:11:09 -0500 From: Mark Felder <feld@feld.me> To: freebsd-fs@freebsd.org Subject: Re: Millions of small files: best filesystem / best options Message-ID: <op.we00kvjq34t2sn@tech304> In-Reply-To: <2134924725.5040.1338211317460.JavaMail.root@zimbra.interconnessioni.it> References: <2134924725.5040.1338211317460.JavaMail.root@zimbra.interconnessioni.it>
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ZFS is heavy, but if you have the resources it could possibly fit your needs if tuned correctly. You can change the blocksize for any ZFS filesystem which might help. It also deals with filesystems that have lots of files quite well -- we have some customer backups that sprawl to 20 million+ files and ZFS doesn't seem to care. As far as UFS -- I'm not sure which newfs options you will want to use, but you definitely will want to tune vfs.ufs.dirhash_maxmem hth
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