parkverbot是一个守护进程，以防止在旋转介质的硬盘磁头停泊。现代旋转硬盘有一个不好的特性，涉及定时自动卸载磁头，由SMART属性“Load_Cycle_Count”衡量。这会导致其他问题（也不能总是被关闭）间的延迟唤醒。将定期发出parkverbot守护小的读取请求，以防止将其头部卸载闲置状态的硬件。
parkverbotisadaemonthatpreventsharddiskheadparkinginrotationalmedia.Modernrotationalharddiskshaveamisfeatureinvolvingtheregularautomaticunloadingoftheheads,measurablebytheSMARTattribute"Load_Cycle_Count".Thiscauseslatencyonwake-upamongstotherissues(anditcannotalwaysbeturnedoff).Theparkverbotdaemonwillperiodicallyissuesmallreadrequestsinordertokeepthehardwarefromgoingtoitshead-unloadedidlestate.
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