遗留系统往往有复杂的结构，用户手册和系统设计文件过时、不准确，对现有系统已经不能提供有效支持。
User manuals and system design documents are out of date and inaccurate, which are unable to provide effective support for existing systems.
正如您所见，绑定安装非常强大，让您可以轻易地修改文件系统设计，丝毫不必忙乱。
As you can see, bind mounts are extremely powerful and make it easy to make modifications to your filesystem layout without any fuss.
上一期文章中还讨论了我计划如何改进现有的设计，以便从文件系统中抽象出XM。
In my previous article, I also discusses how I plan to evolve the existing design to abstract XM from the file system.
在阅读了本篇文章后，您应该学会建立分部及通用类型的模型，和使用映射模型来设计源代码的文件系统概览。
Also, after reading this article, you should be able to model partial and generic types, and use a mapping model to design the file system view of the source code.
即写即拷设计的一个有趣的副作用是文件系统的所有写入都成为顺序写入(因为始终进行重新映射)。
An interesting side effect of the copy-on-write design is that all writes to the file system become sequential writes (because remapping is always occurring).
根据系统的设计，规则可被存储在关系数据库内，也可存储为XML文件。
Rules can be stored in a relational database or as XML files, depending on the design of the system.
查询精心设计和实现的原生xml数据库要比查询存储在文件系统中的文档快得多，原因有几个。
Queries over a well-designed, well-implemented native XML database are simply faster than queries over documents stored in a file system, and for several reasons.
为解决这个问题，SGI决定设计一种全新的高性能64位文件系统，而不是试图调整EFS在先天设计上的某些缺陷。
Addressing this problem, SGI decided to design a completely new high-performance 64-bit filesystem rather than attempting to tweak EFS to do something that it was never designed to do.
正如前面所描述的，在浏览器的文件系统缓存中，DominoWebAccess缓存了许多外部引用，比如UI设计元素。
As described earlier, Domino Web Access caches many of the external references, such as UI design elements, in the browser's file system cache.
首先，ext4fs是64位文件系统，并被设计为可以支持很大的容量(1exabyte)。
First, ext4fs is a 64-bit file system and is designed to support very large volumes (1 exabyte).
记住，在设计dump时考虑得更多的是文件系统，而不是单独的文件。
Remember that dump is designed with file systems in mind more than individual files.
Reiser4被设计成为全新的日志文件系统，它拥有很多先进的功能。
Reiser4 was designed from scratch as a new journaling file system with many advanced features.
第 1 个扩展文件系统（ext1）由Remy Card设计，并于 1992 年4 月引入到Linux 中。
The first extended file system (ext) was designed by Remy Card and introduced into Linux in April 1992.
Ext4文件系统被设计为具有向前和向后兼容性，但它具有许多新的高级特性(其中的一些特性破坏了兼容性)。
The ext4 file system is designed as a backward - and forward-compliant replacement for ext3fs but with many new advanced features (some of which break the compatibility).
与这些商业实现和学术实现不同，FUSE将这种文件系统的设计能力带到了Linux中来。
Unlike these commercial and academic examples, FUSE brings the capabilities of this filesystem design to Linux.
就文件系统来说，用户空间的文件系统就不再是新奇的设计了。
When it comes to filesystems, the user space filesystem is not a new design. A sampling of commercial and academic implementations of user space filesystems include.
下一小节将解释每种文件系统的设计和优点。
The next sections explain the design and advantages of each.
设计重建的目的是为了能在空文件系统上操作，并将它还原为已保存的状态。
Rebuild is designed to work on an empty file system and restore it back to the saved state.
系统由许多类型的文件组成，但目标文件具有一种特殊的设计，提供了灵活和多样的用途。
Many types of files make up the system, but object files have a special design that provides for flexible, multipurpose use.
首先，它好像是设计用来更新一个文件系统，同时在另外一个文件系统上运行，这样能使更新更加安全。
For one thing, it looks like it is probably designed to update one file system while running from the other, to make updates safe.
每个文件系统规定自己的存储战略，可能是为满足特定的条件而设计的。
Each file system dictates its own storage strategy, which may be designed to meet a specific criterion.
同时配置用户输入和文件系统访问权十分危险，因此最好把应用程序设计为使用数据库和隐藏生成的文件名来避免同时配置。
Configuring file system access along with user input is dangerous, so it's best to avoid it altogether by designing your application to use a database and hidden, generated file names.
配置文件实际上是框架作者设计的DSL文件，开发人员用它来配置运行时系统。
That config file is actually a DSL designed by the framework author and developers use it to configure a running system.
MTD_CHAR提供对闪存的原始字符访问，而MTD_BLOCK将闪存设计为可以在上面创建文件系统的常规块设备(象ide磁盘)。
MTD_CHAR provides raw character access to the flash, while MTD_BLOCK projects the flash as a normal block device (like an ide disk), on which a filesystem can be created.
例如，文件系统开发者可能会设计出一种日志，该日志存储在主机文件系统上需要修改的字节范围。
For example, a filesystem developer could design a journal that stores spans of bytes that need to be modified on the host filesystem.
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。
The initial RAM disk was originally created to support bridging the kernel to the ultimate root file system through a transient root file system.
而且，法律的因素也呼唤一种设计精良，实施得当的评估系统，因为在解雇员工时员工的业绩评估可以当成法律文件来使用。
And, there are many legal reasons for a well-designed, well-implemented appraisal program, including its use as legal documentation in the event of an employee termination.
设计者往往为了避免错误而过于严格：通过对文件进行彻底的验证提前发现错误以便建立更稳定的系统。
Designers tend to be strict in an attempt to prevent errors; catching errors early through proper validation of files helps build more stable systems.
它确实是对传统UNIX文件系统底层的创新性重新设计。
It really is an innovative ground-up redesign of the traditional UNIX filesystem.
它确实是对传统UNIX文件系统底层的创新性重新设计。
It really is an innovative ground-up redesign of the traditional UNIX filesystem.
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