什么是持久性存储。
因此，数据库被降级为简单的持久性存储设备。
Therefore, a database is relegated to being simply a persistence storage service.
如果未将持久性存储附加给实例，只能将它解除配给。
Persistent storage can only be de-provisioned if it is not attached to an instance.
IBMDB 2就是一个用做持久性存储的好选择。
您可以从ibm云门户或通过API来创建持久性存储的克隆。
You can create a clone of your persistent storage either from the IBM Cloud portal or via the API.
还要知道不能将持久性存储并发地附加到多个实例，这一点很重要。
It is also important to understand that persistent storage cannot be attached concurrently to multiple instances.
可以在云配给多台文件服务器，每台文件服务器的持久性存储为2tb。
Multiple file servers could be provisioned in the cloud, each with 2tb of persistent storage.
类之间的关系，以及程序逻辑都不会去考虑持久性存储的特征或者结构。
Neither the relationships between our classes, nor the application logic took into consideration the characteristics or structure of an underlying persistence storage.
让我们先了解实例备份功能，然后再了解持久性存储备份功能。
Let's first visit the instance backup capability and then the persistent storage backup capability.
保存到数据库或一些临时的持久性存储，确保同一个不习惯。
Save the nonce to a DB or some persistent storage to make sure the same one isn't used.
目前，最多能将一个持久性存储单元关联到一个给定实例，如图1中所示。
Currently, a maximum of one persistent storage unit can be associated to a given instance, as shown in Figure 1.
持久性类封装对持久性存储的访问，包括关系数据库、平面文件和对象库。
Persistence classes encapsulate access to your persistent stores, including relational databases, flat files, and object bases.
在序列化期间，对象将其当前状态写入到临时或持久性存储区。
During serialization, an object writes its current state to temporary or persistent storage.
持久性存储是您在创建实例过程中可以使用并附加给实例的存储。
Persistent storage is a storage that you can order and attach to an instance during the instance-creation process.
RMS提供了一个小型的数据库，为移动设备提供持久性存储。
The RMS provides a small database, and provides the persistent store for handheld devices.
无论采用哪种方式，此持久性存储都不应对现有SOAP代码本身造成影响。
Either way, this persistent store should not impact the existing SOAP code itself.
若您正在为任何形式的持久性存储使用串行化，那么这将是一个严重的bug。
This is a critical bug if you're using serialization for any form of persistent storage.
将状态分配到持久性存储中就是所谓的钝化(passivation)。
Allocating the state to a persistent store is known as passivation.
因为持久性存储是一种块设备，锁定是由它指定的主机来控制的(图2)。
Since persistent storage is a block device, locking is controlled by the host it is assigned to (Figure 2).
深请求是执行服务器端代码并访问持久性存储才能完成请求的Web页面发出的请求。
Deep requests are requests originating from the Web page that execute server-side code but do access a persistence store to complete the request.
使用临时代替吗？保存到数据库或一些临时的持久性存储，确保同一个不习惯。
Use a nonce instead? Save the nonce to a DB or some persistent storage to make sure the same one isn't used.
一个持久性命令，该命令基于持久性存储中工作流实例的状态信息加载该实例。
A persistence command that loads a workflow instance based on state information of the instance in the persistence store.
简而言之，此功能就是将一个持久性存储块的内容复制给一个新的持久性存储块。
The following aspects of the persistent storage cloning capability should be noted
若您关注对象串行化，特别是希望为长期持久性存储使用串行化对象时，就必须对串行化进行测试。
If you care about object serialization, and especially if you intend to use serialized objects for long-term persistent storage, you must test serialization.
这就自然地限制了其作为计算平台的能力；计算资源容易收到处理能力、内存和持久性存储的限制。
This naturally places restrictions on them as a computing platform; compute resources tend to be limited, in terms of processing power, memory, and persistent storage.
由于存储实际上是使用后端系统上的扇区，所以原始持久性存储类型的配给时间会比较短。
Raw persistent storage types take less time to provision due to the nature of how the storage actually consumes sectors on the back-end systems.
这是一个会话编号(准备好再现关于您的数据)，它存储在之前对Web站点访问的持久性存储中。
It's a session number, ready to resurrect data about you, held in persistent storage from previous visits to the Web site.
关系型数据库已经超越了持久性存储设备的角色，它们还解决了上述层次数据库的两个缺点。
They also address the two shortcomings of hierarchical databases listed above. The major characteristics of relational type databases are.
浅请求是执行服务器端代码但是不访问持久性存储(例如数据库)就完成请求的Web页面发出的请求。
Shallow request are requests originating from the Web page that execute server-side code but do not access a persistence store (such as a database) to complete the request.
有没有一种持久性存储方法可以在磁盘上生成易于读取、使用并能发送给其他应用程序的XML文档呢？
Does one form of persistence result in XML documents on disk that are easier to read, use, consume, or send to another application?
应用推荐