Các chủ đề async cho phép khách hàng thực hiện yêu cầu nhiều RPC cùng một lúc, thực hiện ghi lại trên thay mặt cho các quá trình bằng cách sử dụng NFS file. NFS đọc và viết yêu cầu được thực hiện trong NFS kích thước bộ đệm. Kích thước bộ đệm được sử dụng cho đĩa I / O yêu cầu độc lập của MTU của mạng | Managing NFS and NIS The enhanced autofs automounter Browsing indirect maps In Solaris the autofs automounter was modified so that displaying directories of the mount points of indirect maps shows every entry in other words it allows a user to browse the map cd tools Is -l total 4 dr-xr-xr-x 1 root root 19 Aug 31 12 59 bugview dr-xr-xr-x 1 root root 19 Aug 31 12 59 deskset dr-xr-xr-x 1 root root 19 Aug 31 12 59 news dr-xr-xr-x 1 root root 19 Aug 31 12 59 sting When the readdir entry point in the autofs filesystem is called on tools for the first time there are no autofs directories underneath it and so autofs makes an RPC call to the automounter daemon to read the auto tools map to return the list of map entries. The map entries are used to construct a directory listing for the ls command. Note that the attributes of the directories are faked. This is because we want to avoid mount storms as described in Section Now see what happens we start to populate tools with real entries ls tools news bin lib spool cd tools ls -l total 1 dr-xr-xr-x 1 root root 19 Aug 31 12 59 bugview dr-xr-xr-x 1 root root 19 Aug 31 12 59 deskset drwxrwxr-x 5 root other 512 Jun 10 17 03 news dr-xr-xr-x 1 root root 19 Aug 31 12 59 sting Invoking the Is command on tools news causes tools news to be NFS-mounted from thud tools3 news. When the readdir entry point in the autofs filesystem is called on tools for the second time there is now an NFS directory news underneath it. Thus autofs combines the list of map entries with the list of NFS-mounted directories. By default indirect maps can be browsed but browsing can be turned off with the -nobrowse option to an indirect map. Direct maps Direct maps define point-specific nonuniform mount points. The best example of the need for a direct map entry is usr man. The usr directory contains numerous other entries so it cannot be an indirect mount point. Building an indirect map for usr man that uses usr as a mount point will .
