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    SubjectRe: Disk write cache (Was: Hyper-Threading Vulnerability)
    On 5/15/05, Mark Lord <lkml@rtr.ca> wrote:
    > There's your clue. The drive LEDs normally reflect activity
    > over the ATA bus (the cable!). If they're not on, then the drive
    > isn't receiving data/commands from the host.

    Mark is correct, activity indicators are associated with bus activity,
    not internal drive activity.
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