文件系统

Virtual file system this simple file system to achieve the most simple functions of the file system is to use a disk file to...

虚拟文件系统这个简单的文件系统实现了最简单的文件系统功能，是使用一个磁盘文件来模拟磁盘的。

To build this file system, an atomic updating algorithm and a mult－buffer coheront policy are presented. Based on time－stamp, using variable－size blocks of files, the atomic updating algorithm controls the modification operations on the replicated files.

所设计的分布式文件系统用来支持分布式全局进程调度，它具有如下特点：（1）既支持分布式单副本文件的管理、又支持分布式多副本文件的管理；（2）被访问的文件数据缓存在客户侧结点机；（3）文件互斥访问的粒度为变长访问块；（4）提供全局一致的文件命名空间和透明文件访问能力；（5）支持用户在系统中任一结点机注册；为实现本文件系统，笔者提出了原子更新算法和多缓存一致性策略。

An activity of a file system (such as the High Performance File System, HPFS, or the Andrews File System, AFS) in which cached meta data (data about the structures of the file system) is periodically written to the file system's permanent store.

在文件系统比如高性能文件系统HPFS或Andrews文件系统AFS中，是指将缓存中的元数据关于文件系统结构的数据周期性地写回文件系统的永久存储器中的一次写动作。

Could fail. If the filesystem in question has data or media errors of some kind, mount mayreport it is unable to read the filesystem's superblock, which is (under Unix-like filesystems)filesystem as a whole. If you attempt to mount a CD-ROM or floppy drive, and there's no CDROM

如果文件系统有数据或媒体错误等问题的话，mount会报告不能读取文件系统超级块（UNIX类文件系统的下的），它是文件系统的一部分，大体上是用来为文件系统存储文件和属性信息的。

Root filesystem while it's unmounted is to use a boot/root floppy combination, such as theinstallation floppies used by your Linux distribution. This way, the root filesystem iscontained on a floppy, the root filesystem remains unmounted, and youcan check the hard-drive root filesystem from there. See Section 8.6 in Chapter 8 for more

一个方法是使用像你的 LINUX 发行版的安装软盘这样的启动软盘先卸载 root 文件系统，这样你的 root 文件系统就在你的软盘上了，原来的 root 文件系统被卸载了，你就可以检查你硬盘上的 root 文件系统了。

Unmounting a filesystemon disk, and it makes the filesystem no longer available from its mount point. You are then

卸载一个文件系统有两功效：它能和包含当前磁盘中文件系统内容系统缓存的系统缓存器同步，并且这个挂载点下的文件系统不再可用。

The Design of Network File System According to the Virtual Address wants to realize the Net of conjoining, and on this basis, to realize the data delivers and network file operation of relevant system. The main contents includes to realize the conjoining of two computers; The data construction of the definition network file system; Realize the operation that have something to do with network file system and design the access calculate way of the file of virtual address.

基于虚地址的网络文件系统的设计是要实现联网，并在此基础上实现数据传输及与网络文件系统有关的操作，其主要内容包括实现两台计算机的互联；定义网络文件系统的数据结构；实现与网络文件系统有关的操作和设计虚地址文件的存取算法四个方面。

Without such protection, the filesystem could become corrupted when mounted by one system while the other system is hibernated.

如果没有这样的保护，当在一个系统中载入一个文件系统，而在另外系统中这个文件系统却为休眠是，文件系统可能会损坏。

For the coherence in metadata, a serverless architecture model based on all the data and metadata is adopted because they can be storaged in all place and can be dynamicly transferred; The associative mode of the disc metadata's journal structure and the memory metadata's journal structure can turn away the timing waste in scanning the enormous file system by fsck; Afterwards a intercalating checkpoint algorithm and a rollback recovery algorithm based on the metadata fault tolerance in cluster file system is implemented; A fetched stochastic process model is setup to analyze availability of this system, it can reduce the inspecting fault time and then they support high availability.

为了达到复杂的元数据管理一致性，采用了一个无集中式服务器的体系结构，保证所有的数据和元数据能够存放到系统的任意地方，并且在操作的过程中可以动态迁移；采用元数据的磁盘日志结构和内存日志结构相结合的方式对元数据进行管理，减少了fsck对庞大的文件系统中元数据的扫描时间；为了实现故障恢复，提出了元数据容错的设置检查点算法和回卷恢复的算法，提高了文件系统元数据服务的可用性；给出了基于元数据故障的随机过程模型，可以通过减少检错时间提高文件系统的可用度。

Windows encryption can collate documents and compressed file can be automatically analyzed disk file system, regardless of disk file system is FAT16 or NTFS format can be safe, fast and finishing under optimal performance, or may choose to complete only finishing finishing usable space, and maintain the continuous disk file, speed up file access efficient, finishing disk scheduling function can set the timetable for finishing disk, a time may help you to do automatic disk maintenance.

能整理Windows 加密文件和压缩的文件，可自动分析磁盘文件系统，无论磁盘文件系统是 FAT16 或 NTFS 格式皆可安全、快速和最佳效能状态下整理，可选择完整整理或仅整理可用空间，保持磁盘文件的连续，加快文件存取效率，有排程整理磁盘功能，可以设定整理磁盘的时间表，时间一到即可帮你自动做磁盘维护工作。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。