Date: Mon, 20 Jun 2005 11:36:32 +0100 From: Alex Zbyslaw <xfb52@dial.pipex.com> To: Ted Mittelstaedt <tedm@toybox.placo.com> Cc: Sandy Rutherford <sandy@krvarr.bc.ca>, freebsd-questions@freebsd.org Subject: Re: Yet another RAID Question (YARQ) Message-ID: <42B69C30.6070603@dial.pipex.com> In-Reply-To: <LOBBIFDAGNMAMLGJJCKNGEMAFBAA.tedm@toybox.placo.com> References: <LOBBIFDAGNMAMLGJJCKNGEMAFBAA.tedm@toybox.placo.com>
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Ted Mittelstaedt wrote: >>Sandy >>Rutherford >>Sent: Sunday, June 19, 2005 10:52 PM >> >> >>In order to boost read performance, a RAID card should interleave >>reading from a RAID-1 volume by reading alternately from one drive and >>then the other. You can see this in alternate blinking of the >>activity lights of the drives. If you are not seeing this when >>copying a large file, then this would suggest that a RAID-1 volume is >>not working as it should. >> >> >> > >Incorrect. What you are describing is RAID-0. RAID-1 is mirroring. >Here's > > I don't think you read the message correctly. It said that *reads* were interleaved not that the *data* was interleaved. --Alex
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