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Date:      Thu, 17 Jun 1999 17:48:24 +0930
From:      Greg Lehey <grog@lemis.com>
To:        Narvi <narvi@haldjas.folklore.ee>
Cc:        "David E. Cross" <crossd@cs.rpi.edu>, freebsd-hackers@FreeBSD.ORG
Subject:   Re: vinum performance
Message-ID:  <19990617174823.O9893@freebie.lemis.com>
In-Reply-To: <Pine.BSF.3.96.990617110938.3570S-100000@haldjas.folklore.ee>; from Narvi on Thu, Jun 17, 1999 at 11:10:08AM %2B0300
References:  <199906170743.DAA16929@cs.rpi.edu> <Pine.BSF.3.96.990617110938.3570S-100000@haldjas.folklore.ee>

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On Thursday, 17 June 1999 at 11:10:08 +0300, Narvi wrote:
>
> On Thu, 17 Jun 1999, David E. Cross wrote:
>
>> I have a drive that is rated at ~16 Meg/second, and indeed it delivers on the
>> order of 15+ Meg/second.  If I use Vinum to create a concatinated device
>> of 2 such units performance drops to 2.5 Meg/sec.  This seems like a
>> drastic drop in performance.  Any ideas what I am doin incorrectly?
>
> Try changing stripe size. How big is it right now?

This was a concatenated plex.

Greg
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