Take a look at instance-level operations first.
首先，我们看一下实例级操作。
Security considerations when issuing instance-level commands.
发出实例级命令时的安全性考虑。
Otherwise, instance-level operations such as db2start will fail.
否则，诸如db2start之类的实例级操作将失败。
Using an authorized user, attempt to perform instance-level operations.
使用授权的用户，尝试执行实例级操作。
Specifies that only instance-level information is to be collected and displayed.
指定仅收集和显示实例级别的信息。
Classes that require class instance-level access control must implement the Resource interface.
要求类实例级访问控制的类必须实现Resource接口。
Most instance-level operation commands do not accept user IDs or passwords as part of the input.
大多数实例级操作命令不会接受用户ID或密码作为输入部分。
Instance-level operation is any operation that has to due with the maintenance of a DB2 instance.
实例级操作是涉及DB 2实例维护的任何操作。
Enterprise encyclopedias are databases that have role-based access control and instance-level access control.
企业百科全书是拥有基于角色控制以及实例层次控制的数据库。
With a little bit of work, we can extend JAAS to include a generalized class instance-level authorization framework.
只要做一点工作，我们将可以扩展JAAS，使其包含一个通用的、类实例级的授权框架。
Simulate the testing of the local authorization for an instance-level operation (without the user ID and password).
模拟实例级操作(没有用户ID和密码)的本地授权测试。
By default, the instance is set up to use one type of authentication for all instance-level and connection-level requests.
默认情况下，建立一个实例，它将使用用于所有实例级和连接级请求的一种身份验证类型。
Using an unauthorized user, attempt to perform instance-level operations such as get the database manager configuration parameter.
使用未授权的用户，尝试执行实例级操作，如获得数据库管理器配置参数。
Some typical examples of instance-level operations are update database manager, configuration parameter, and start database manager.
实例级操作的典型例子为更新数据库管理器配置参数和启动数据库管理器。
In DB2 LUW, memory consumed by DB2 server is broadly sub-divided into instance-level database manager Shared memory and database-level database Shared memory.
在DB 2LUW中，DB 2服务器所消耗的内存大致分为实例级的数据库管理器共享内存和数据库级的数据库共享内存。
As a best practice, change the default value of each instance-level authority parameter to an explicit group name in order prevent unintended super-user access.
作为一项最佳实践，应该将每个实例级权限参数的缺省值改为一个显式的组名，以防止意料之外的超级用户访问。
The most important thing to note when extending JAAS for class instance-level authorization is that the permission implementation class must have a three-parameter constructor.
在为类实例级授权扩展JAAS时要注意的最重要的一点是：许可权实现类必须有一个带三个参数的构造函数。
We need to add one thing to this file to extend the policy definition for class instance-level authorization: an optional relationship parameter associated with a permission statement.
我们需要向这个文件添加一个东西为类实例级授权扩展策略定义：一个与许可权语句相关的可选关系参数。
Advanced platforms that have a limited instance-level ability to provide metering and billing often opt to provide generalized billing models in which there is a flat fee to run application code.
在计费和计量方面存在实例层功能局限的高级平台，会选择提供通用计费模式，这种模式在运行应用程序代码时会产生固定费用。
Auditing takes place at the instance level, meaning that once it is started, it audits the activity for all databases in that instance.
审计发生在实例级，这意味着一旦启动审计功能，它就会审计那个实例中所有数据库的活动。
The network communication between client and server can be encrypted if you choose DATA_ENCRYPT method of authentication at the instance level.
如果在实例级选择 DATA_ENCRYPT身份验证方法，那么可以对客户机和服务器之间的网络通信进行加密。
Authority levels that are defined at the instance level apply to all databases within the instance.
在实例级上定义的权限级别应用于这个实例中的所有数据库。
Note that the authentication parameter is set at the instance level, meaning that databases created in the same instance share the authentication mode.
注意，AUTHENTICATION参数是在实例级上设置的，这意味着在相同实例中创建的数据库将使用共同的身份验证模式。
This change will allow granularity at the database level, rather than at the instance level.
这一变化将允许数据库级别上的颗粒度，而不是实例级别上的颗粒度。
You can also update any of the other instance level authority parameters in a similar manner.
还可以以相似的方式更新任何其他实例级权限参数。
The dashboards (Figure 1) can display data at both the individual instance level and the aggregate level, and offer sophisticated dimensional analysis.
仪表板(图1)可同时在各个实例级别和聚合级别显示数据，提供复杂的多维分析。
Each instance also has its own configuration file, the Database Manager configuration file (DBM CFG) for instance level security, performance variables, and communication configuration.
每个实例还具有自己的配置文件，数据库管理器配置文件(DBMCFG)用于进行实例级的安全、性能变量和通信配置。
As the figure shows, the audit facility operates at the instance level servicing all databases in the instance.
如图所示，审计功能运行在实例级，为实例中的所有数据库服务。
Most parameters that affect the behaviour of stored procedures are defined at the instance level (that is, the database management level).
影响存储过程行为的大多数参数是在实例级(即数据库管理级)上定义的。
Theshared memory component of IDS is at instance level and is divided into three segments, as shown in the Figure 4 above.
IDS的共享内存组件属于实例级，被分为三个部分，如上面图4所示。
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