The initial RAM disk was originally created to support bridging the kernel to the ultimate root file system through a transient root file system.
初始ram磁盘最初是设计用来通过一个临时根文件系统来作为内核到最终的根文件系统之间的桥梁。
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Configure the host adapter driver to be loaded through an initial RAM disk, which applies the configuration data for redundant disks when loading the adapter module at boot time.
And because the information is being loaded from RAM, and not from disk through a database and other processing, the access to the information is almost instantaneous.