Date: Thu, 3 Nov 2005 13:34:46 -0500 (EST) From: Francisco <francisco@natserv.net> To: Brad Knowles <brad@stop.mail-abuse.org> Cc: stable@freebsd.org, Will Saxon <WillS@housing.ufl.edu> Subject: Re: Disk 100% busy Message-ID: <20051103133248.Y60367@zoraida.natserv.net> In-Reply-To: <p06200716bf78aa876114@[10.0.1.210]> References: <0E972CEE334BFE4291CD07E056C76ED807738005@bragi.housing.ufl.edu> <p06200716bf78aa876114@[10.0.1.210]>
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On Mon, 17 Oct 2005, Brad Knowles wrote: > Note that RAID-1 is the second worst-case for mail server performance > -- it accelerates reads (if you have mirror load-balancing), but all writes > are required to be held until complete on both disks. The only worse case > would be RAID-5, where you have to write (or re-write) an entire RAID block > at once, plus the parity information. Coming late into the thread... What is a good raid level for a maildir IMAP server? RAID 10 (or 0+1 as others call it).
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