目录一、lsblk 命令简介基本用法二、识别磁盘类型的关键参数：ROTA查询 ROTA 参数ROTA 值的含义三、为什么 ROTA 参数能区分磁盘类型机械硬盘（HDD）的工作原理固态硬盘（SSD）的工作原理四、其他识别磁盘类型的
I\'ve got a view in Django that uses memcached to cache data for the more highly trafficked views that rely on a relatively static set of data. The key word is relatively: I need invalidate the memcac
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