Message-ID: <47DFBD99.2080501@davidnewall.com>
Date: Tue, 18 Mar 2008 23:33:21 +1030
From: David Newall <davidn@davidnewall.com>
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To: Daniel Phillips <phillips@phunq.net>
CC: david@lang.hm, Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Willy Tarreau <w@1wt.eu>, linux-kernel@vger.kernel.org
Subject: Re: [ANNOUNCE] Ramback: faster than a speeding bullet
References: <200803092346.17556.phillips@phunq.net> <alpine.DEB.1.00.0803170740440.14887@asgard.lang.hm> <alpine.DEB.1.00.0803171021300.17640@asgard.lang.hm> <200803180233.10156.phillips@phunq.net>
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Daniel Phillips wrote:
> You will need:
>
>   * Two Violin 1010 memory devices
>
>   * Four UPS units each rated for one hour at 600 Watts
>
>   * Two servers, each with at least two 8x PCI-e slots
>
>   * One SAN with a bunch of 15K rpm scsi disks
>   


Honestly, this isn't at all what I understood you to be talking about. 
In your very first post you described ramback as "a new virtual device
with the ability to back a ramdisk by a real disk."  I assumed "ramdisk"
to mean the Linux psuedo-device.  I never understood that you meant an
external device, in fact I thought ramback was *instead of* a Violin. 
Since you're talking about external ram, it survives operating system
crashes and of course that is not such a big deal as I was thinking.
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