Date: Mon, 1 Mar 2004 14:41:00 -0800 From: Charles McManis <cmcmanis@mcmanis.com> To: Forrest Aldrich <forrie@forrie.com>, Derrick Ryalls <ryallsd@datasphereweb.com> Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD filesystem performance in Enterprise Message-ID: <200403011441.00081.cmcmanis@mcmanis.com> In-Reply-To: <4043B575.6040400@forrie.com> References: <A99A5AC30F74624388EE5F757BA58A20D7A23A@RED-MSG-50.redmond.corp.microsoft.com> <4043B575.6040400@forrie.com>
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FFS is fine, until you crash. Generally a FreeBSD machine with FFS and Softdeps can keep up, the challenge comes when you have to fsck everything to get back from a crash. That is why things like LFS et alia are useful. For things like mail directories the problem can be partitioned into dozens or thousands of nodes. Yahoo uses NetApp filers for this. How many filesystem ops/second? Generally it will constrain how many emails a day you process at some level. Will it work? Sure, it will work fine. And on a RAID system it will be unlikely to corrupt data, and with a file system mirror you will be unlikely to lose data. --Chuck
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