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Date:      Sat, 3 Feb 2007 17:18:24 -0800
From:      Josef Grosch <jgrosch@juniper.net>
To:        Ted Mittelstaedt <tedm@toybox.placo.com>
Cc:        Philippe Lang <philippe.lang@attiksystem.ch>, questions@freebsd.org, jgrosch@MooseRiver.com
Subject:   Re: Fast SCSI RAID controller
Message-ID:  <20070204011824.GA34372@juniper.net>
In-Reply-To: <004b01c747b7$7606c190$3c01a8c0@coolf89ea26645>
References:  <6C0CF58A187DA5479245E0830AF84F421D17A9@poweredge.attiksystem.ch> <004b01c747b7$7606c190$3c01a8c0@coolf89ea26645>

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On Sat, Feb 03, 2007 at 09:19:27AM -0800, Ted Mittelstaedt wrote:
> he still ought to look at them, cheaper faster disk arrays are nothing
> to sneeze at.
> 
> SCSI is only a win these days if your running the most expensive 10K
> RPM drives in a mirrored configuration, which is common on database
> servers.  And raid-5 in particular unless you have a minimum of 5 drives
> in your array, you are going to just be throwing the performance edge
> of the more expensive scsi drives into the toilet, so what is the point of
> buying them?
> 
> If your doing raid 5 for redundancy, there's no argument, sata is the
> clear winner on the 3ware or highpoint cards.
> 
> Ted


This system is going to be a testbuild server to answer the question, "Will
this commit break the build?" It needs to be really fast. I'm looking at
15K RPM drives most likley either RAID 10 or RAID 0. Most of our systems
that have local disk are RAID 10. We have used SCSI disks becuase they are
fast and reliable. For data that we can not loose we use NetApps either
attached via Gige copper or fiber.


Josef 

-- 
FreeBSD 6.2         |
Josef Grosch        | Listen, strange women lying in ponds distributing
jgrosch@juniper.net | swords is no basis for a system of government.



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