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    SubjectRe: Recoverable RAM Disk
    jbradford@dial.pipex.com wrote:
    >
    > Just wondering - has anyone ever given any thought to the idea of a RAM disk that is not erased on a warm boot?
    >
    > Obviously this is a bit architechture-specific - I don't think it's easily do-able on i386, but maybe it is other architechtures?

    We did it for a product using PowerPC on compactPCI. Critical logs are stored
    in ram beyond what the kernel uses, and it can be mapped in for processes to use
    it.

    As long as the card has power, the information remains available, including
    resets of the card.

    The only tricky bit is that I don't know if a warm boot on a PC wipes ram or
    not...

    Chris

    --
    Chris Friesen | MailStop: 043/33/F10
    Nortel Networks | work: (613) 765-0557
    3500 Carling Avenue | fax: (613) 765-2986
    Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com
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