Skip site navigation (1)Skip section navigation (2)
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>

next in thread | previous in thread | raw e-mail | index | archive | help
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




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?42B69C30.6070603>