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Date:      Fri, 18 Feb 2000 08:34:34 -0800
From:      Alan Sickels <asickels@netsworkinc.com>
To:        "'Daniel C. Sobral'" <dcs@newsguy.com>, Brad Knowles <blk@skynet.be>
Cc:        Clifton Royston <cliftonr@lava.net>, Tom <tom@uniserve.com>, freebsd-stable@FreeBSD.ORG
Subject:   RE: Initial performance testing w/ postmark & softupdates...
Message-ID:  <AB1BB6080088D3118345006097BEB7A409DC54@FATAEX01>

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Actually RAID 0 is disk striping with *NO* redundancy. RAID *1* is
mirroring.

-----Original Message-----
From: Daniel C. Sobral [mailto:dcs@newsguy.com]
Sent: Thursday, February 17, 2000 6:31 PM
To: Brad Knowles
Cc: Clifton Royston; Tom; freebsd-stable@FreeBSD.ORG
Subject: Re: Initial performance testing w/ postmark & softupdates...


Brad Knowles wrote:
> 
>         Of course, he's doing RAID-0 across the board for speed on his
> filesystems for news articles, and no thought given to reliability
> because he's got multiple servers for that kind of redundancy.

He is doing RAID-0+1, I think. BTW, RAID-0 is mirroring, which has high
reliability.

--
Daniel C. Sobral			(8-DCS)
dcs@newsguy.com
dcs@freebsd.org

	"If you consider our help impolite, you should see the manager."




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<P><FONT SIZE=2>Actually RAID 0 is disk striping with *NO* redundancy. RAID *1* is mirroring.</FONT>
</P>

<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Daniel C. Sobral [<A HREF="mailto:dcs@newsguy.com">mailto:dcs@newsguy.com</A>]</FONT>
<BR><FONT SIZE=2>Sent: Thursday, February 17, 2000 6:31 PM</FONT>
<BR><FONT SIZE=2>To: Brad Knowles</FONT>
<BR><FONT SIZE=2>Cc: Clifton Royston; Tom; freebsd-stable@FreeBSD.ORG</FONT>
<BR><FONT SIZE=2>Subject: Re: Initial performance testing w/ postmark &amp; softupdates...</FONT>
</P>
<BR>

<P><FONT SIZE=2>Brad Knowles wrote:</FONT>
<BR><FONT SIZE=2>&gt; </FONT>
<BR><FONT SIZE=2>&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Of course, he's doing RAID-0 across the board for speed on his</FONT>
<BR><FONT SIZE=2>&gt; filesystems for news articles, and no thought given to reliability</FONT>
<BR><FONT SIZE=2>&gt; because he's got multiple servers for that kind of redundancy.</FONT>
</P>

<P><FONT SIZE=2>He is doing RAID-0+1, I think. BTW, RAID-0 is mirroring, which has high</FONT>
<BR><FONT SIZE=2>reliability.</FONT>
</P>

<P><FONT SIZE=2>--</FONT>
<BR><FONT SIZE=2>Daniel C. Sobral&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (8-DCS)</FONT>
<BR><FONT SIZE=2>dcs@newsguy.com</FONT>
<BR><FONT SIZE=2>dcs@freebsd.org</FONT>
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=2>&quot;If you consider our help impolite, you should see the manager.&quot;</FONT>
</P>
<BR>
<BR>
<BR>

<P><FONT SIZE=2>To Unsubscribe: send mail to majordomo@FreeBSD.org</FONT>
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