Fix set_ssds script.
Fix set_ssds script.

Generate the config file of root paths.
Use the entire SSDs without partitions.

flashxio/FlashX,zheng-da/FlashX,zheng-da/FlashX,silky/FlashGraph,silky/FlashGraph,icoming/FlashX,flashxio/FlashX,icoming/FlashX,zheng-da/FlashX,zheng-da/FlashX,zheng-da/FlashX,icoming/FlashGraph,icoming/FlashX,icoming/FlashGraph,flashxio/FlashX,flashxio/FlashX,silky/FlashGraph,icoming/FlashGraph,icoming/FlashGraph,silky/FlashGraph,flashxio/FlashX,silky/FlashGraph,icoming/FlashX,flashxio/FlashX,icoming/FlashX,icoming/FlashGraph