Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 31 Aug 1995 09:10:54 -0700
From:      "Justin T. Gibbs" <gibbs@freefall.FreeBSD.org>
To:        "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>
Cc:        pete@kesa26.kesa.com (Pete Delaney), jbryant@argus.iadfw.net, freebsd-hackers@freebsd.org, pete@rahul.net
Subject:   Re: 4GB Drives 
Message-ID:  <199508311611.JAA11646@freefall.FreeBSD.org>
In-Reply-To: Your message of "Thu, 31 Aug 95 05:57:14 PDT." <199508311257.FAA11224@gndrsh.aac.dev.com> 

next in thread | previous in thread | raw e-mail | index | archive | help
>Now, can you all leave me alone for 30 days so I can go get the stripes
>working, I have small bottleneck that needs fixed :-):-):-)  And can
>anyone tell me what the mean and standard deviation of an I/O request to
>an aic7870 is before it hits the drive given 0 scsi bus contention?  This
>seems to greatly effect rotation offset on stripe sets when pushed to
>the limits of data coming under the head just after the I/O hits the
>drive.

Hmm.  You'd have to come up with some way to benchmark it since its very
dependant on the sequencer code.  I'd be interested to here what your
results were. :)

So, are you planning on using a 3940W for this type of application?

>
>-- 
>Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
>Accurate Automation Company                 Reliable computers for FreeBSD

--
Justin T. Gibbs
===========================================
  Software Developer - Walnut Creek CDROM
  FreeBSD: Turning PCs into workstations
===========================================



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199508311611.JAA11646>