RE: Blockbusting news, this is important (Re: Why are bad disk se ctors numbered strangely, and what happens to them?)

From: John Bradford (john_at_grabjohn.com)
Date: 10/20/03

  • Next message: Patrick Mochel: "Re: [pm] Add error handling to software_suspend" 
    Date:	Mon, 20 Oct 2003 19:29:03 +0100
To: David Lang <david.lang@digitalinsight.com>

    Quote from David Lang <david.lang@digitalinsight.com>:
    > rotating storage is hitting $1 per gig, memory is running ~$100/gig
    > (substantially more for the highest density memory)
    >
    > making a small solid state drive is easy, cheap and definantly has some
    > uses, but making something that will replace stacks of 300G drives is
    > neither cheap or easy.

    Maybe one day local non-volitile storage won't even matter.

    For example, say you were setting up a, (partial), mirror of kernel.org.

    If you already had several machines in a datacentre, you could install
    another one with no disks at all, just 4 GB of RAM, and configure it
    to boot over the lan, loading the root filesystem in to a ramdisk.

    Once booted, it could retrieve the parts of kernel.org that you wanted
    to serve from a trusted mirror site, and begin serving.

    Other such machines could use your machine as a trusted mirror site,
    and eventually you could have lots of these machines all holding their
    partial mirror of kernel.org in RAM.

    As long as there is at least one on-line, any others can go down and
    come up, and it doesn\'t really matter - they will just re-sync with
    another node.

    Of course, this would use up a lot of network bandwidth, but in the
    future that may not matter.

    Or, a more practical usage would be a load balanced cluster of
    webservers - why bother with non-volitile storage in all of them?
    Some of them could serve entirely from RAM, having booted over the
    LAN.

    John.
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  • Next message: Patrick Mochel: "Re: [pm] Add error handling to software_suspend"

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