Date: Wed, 18 Jan 2006 13:21:43 -0500 From: "David S. Madole" <david@madole.net> To: "Ensel Sharon" <user@dhp.com>, <freebsd-hackers@freebsd.org> Subject: Re: tuning to run large (1000+) numbers of null_mounts Message-ID: <1d4901c61c5c$0a9147a0$c3e7a8c0@david> References: <Pine.LNX.4.21.0601181228590.8684-100000@shell.dhp.com>
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From: "Ensel Sharon" <user@dhp.com> > > I am running over 2000 null mounts on a FreeBSD 6.0-RELEASE system. I > am > well aware of the status of the null_mount code, as advertised in the > mount_nullfs man page: > > I am noticing both system instability and data corruption issues on > disk > following crashes. Both of these seem to be related to the null > mounts. I have two very quick questions: For what it's worth, I have three null mounts on each of eight 5.4-RELEASE systems that are read/write and have extensive activity and I have not had a single filesystem problem in 15 months of this configuration. But 2000 of them? I don't know, I've never envisioned 2000 of any kind of mount. David
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