Date: Tue, 2 Oct 2007 16:22:00 -0500 From: Craig Boston <cb@severious.net> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: freebsd-current <freebsd-current@freebsd.org>, Brooks Talley <brooks@illuminati.org> Subject: Re: ZFS corrupting data, even just sitting idle Message-ID: <20071002212200.GC33227@nowhere> In-Reply-To: <20071002210544.GB5375@garage.freebsd.pl> References: <3939DF4C-D688-40B2-9A9A-1400E528AB07@online.no> <30482584.83141191352060006.JavaMail.root@zmail.illuminati.org> <20071002210544.GB5375@garage.freebsd.pl>
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On Tue, Oct 02, 2007 at 11:05:44PM +0200, Pawel Jakub Dawidek wrote: > For me it's just quite interesting to observe how people live for years > with h/w corrupting their data and only putting ZFS there reveals the > problems. I wonder how many strange UFS-related problems/panics reported > over the years are due to buggy hardware. I suspect some of it could be due to ZFS making multi-disk (>3) setups more attractive. For example: A controller / drive combination may work perfectly fine with UFS on a single disk for years with no corruption, but add 1 or 2 more and it stresses out the power supply and causes strange things. I recall reading about bugs in cheap ATA controllers that were only tickled when trying to send simultaneous commands to multiple drives, for instance. IIRC a few of them showed up when gmirror started to become popular. Craig
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