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Re: A little RAID experiment

To: Stefan Ring <stefanrin@xxxxxxxxx>
Subject: Re: A little RAID experiment
From: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>
Date: Wed, 25 Jul 2012 06:00:34 -0500
Cc: Linux fs XFS <xfs@xxxxxxxxxxx>
In-reply-to: <CAAxjCEydX_OgRUewdJGO2TaJO-Y3Xs8BGCAdAfA5uf8zz+zf5g@xxxxxxxxxxxxxx>
References: <CAAxjCEzh3+doupD=LmgqSbCeYWzn9Ru-vE4T8tOJmoud+28FDQ@xxxxxxxxxxxxxx> <CAAxjCEzEiXv5Kna9zxZ-ePbhNg6nfRinkU=PCuyX3QHesq5qcg@xxxxxxxxxxxxxx> <5004875D.1020305@xxxxxxxxxxxxxxxxx> <CAAxjCEw-NJzZmX3Q5CJ+aZ_Q7Yo39pMU=-hiXk0ghTMq7q3PWA@xxxxxxxxxxxxxx> <5004C243.6040404@xxxxxxxxxxxxxxxxx> <20120717052621.GB23387@dastard> <50061CEA.4070609@xxxxxxxxxxxxxxxxx> <CAAxjCEwgDKLF=RY0aCCNTMsc1oefXWfyHKh+morYB9zVUrnH-A@xxxxxxxxxxxxxx> <50066115.7070807@xxxxxxxxxxxxxxxxx> <CAAxjCExFUJOKaD-LMPfZvCrS34V1VHgtrhgvPP0jZ3Hm1YV=6g@xxxxxxxxxxxxxx> <50068EC5.5020704@xxxxxxxxxxxxxxxxx> <CAAxjCEy2Yj=XWctNg2gACbFy81aTu70YJ13Ee8G6-E3Tqvvs7g@xxxxxxxxxxxxxx> <CAAxjCEzF3nTFoedyKf1o5Nv4yPUJkgvC8nCJcx_2dDx8xqWtWA@xxxxxxxxxxxxxx> <50077A34.5070304@xxxxxxxxxxxxxxxxx> <CAAxjCEy=N9ceAA5V6bnrcMc3961gs-Z2NgNyenPJ+gjE2mYUXQ@xxxxxxxxxxxxxx> <500FC3CD.7010809@xxxxxxxxxxxxxxxxx> <CAAxjCEydX_OgRUewdJGO2TaJO-Y3Xs8BGCAdAfA5uf8zz+zf5g@xxxxxxxxxxxxxx>
Reply-to: stan@xxxxxxxxxxxxxxxxx
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On 7/25/2012 5:08 AM, Stefan Ring wrote:
>> You simply must present complete information.  The omission of such is
>> likely why most ignored your post but for me.  I'm the hardwarefreak
>> after all, so I'm always game for RAID discussions. ;)
>>
>> If you can represent with complete specs and data, so that it paints a
>> coherent picture, you may see more willing participation.
> 
> I agree, no offense taken. I will respond to your previous message
> individually, although it won't get as complete as you'd like because
> I simply don't know and cannot find out much about some of the
> systems.

No need for such a response, nobody would read it.  Instead, just
present all the relevant hardware and config specs for the two HBA RAID
cards (as you have nothing on the P2000), and provide that link again to
the sysbench output.  Short, sweet, simple.  If you make posts too long
and rambling you get ignored.  I know from experience. :(

Model:
Cache Size:
#/type of drives:
RAID level:
Cache mode:

That should be sufficient.

-- 
Stan


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