Date: Mon, 11 Jun 2007 15:44:13 -0500 From: "Rick C. Petty" <rick-freebsd@kiwi-computer.com> To: Ivan Voras <ivoras@fer.hr> Cc: freebsd-fs@freebsd.org Subject: Re: Inode density for database machines - newfs -i Message-ID: <20070611204413.GA25491@keira.kiwi-computer.com> In-Reply-To: <f4kadf$g00$1@sea.gmane.org> References: <cone.1181531481.451392.13436.1000@zoraida.natserv.net> <20070611161148.GA19299@keira.kiwi-computer.com> <cone.1181585492.585345.8020.5001@35st.simplicato.com> <f4kadf$g00$1@sea.gmane.org>
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On Mon, Jun 11, 2007 at 10:13:27PM +0200, Ivan Voras wrote: > Francisco Reyes wrote: > > > The current machine is using 2056 inodes for 1.2TB.. with 3,539,382 > > inodes free. For the next machine I will use a higher number in newfs > > until I get the number of free Inodes close to 100K. That will give the > > machine plenty of free inodes. > > How long fsck takes depends on the number of used inodes, not the total > number. That's only true if using UFS2, softupdates, and if the cylinder groups were properly sync'd before shutdown. Otherwise fsck will scan all inodes. > Barring a bug in UFS, you should be able to have as little > inodes as you want, especially if you know for sure what number to expect. > > The only thing that might bite you is if the machine is (sometime in the > future) reassigned to some other duty that suddely requires a lot of inodes. In which case, use growfs to reallocate the default number of inodes. -- -- Rick C. Petty
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