Make the split mirror accessible
使分割镜像可以被访问
什么是分割镜像？
Use split mirror as a clone database.
将分割镜像用作克隆数据库。
Accessing the split mirror does not involve copying.
访问分割镜像时不需要复制。
Initializing the split mirror using the db2inidb command.
使用db2inidb命令初始化分割镜像。
In a split mirror scenario, there are always three sets of actions involved.
在分割镜像场景中，总要涉及三组动作。
Following is an elaboration on the split mirror content of a DB2 UDB database
下面详细讲解了一个DB2UDB 数据库的分割镜像的内容
The path to log files should only be included in the split mirror for clone database.
日志文件的路径只能包括在用于克隆数据库的分割镜像中。
Therefore, I/O writes must be suspended on each partition during the split mirror process.
因此，在分割镜像期间，每个分区上的I/O写都必须挂起。
Here are the steps required on the target system to use a split mirror as a clone database.
为了使用分割镜像作为一个克隆数据库，必须在目标系统上执行以下步骤。
Here are the steps required on the target system to use a split mirror as a standby database.
为了使用分割镜像作为备用数据库，必须在目标系统上执行以下步骤。
All tablespace containers that are not part of the database directory must be part of the split mirror.
不在数据库目录中的所有表空间容器都必需属于分割镜像。
When initializing the split mirror, the db2inidb command does not require any connections to the database.
当初始化分割镜像时，db2inidb命令不需要到数据库的连接。
Users must use the storage vendor's facilities to access the split mirror; it should not be accessed in any other way.
用户必须使用存储供应商的实用程序来访问分割镜像，任何其他方式的访问应该都是行不通的。
The active log directory of the split mirror database must not contain any log file that is not a part of the split mirror.
分割镜像数据库的活动日志目录不能包含任何不属于分割镜像的日志文件。
The common data replicate technologies of snapshot system in storage subsystem layer are split mirror and copy-on-write.
存储子系统层次的快照系统常用的数据复制技术主要有拆分镜像和写前拷贝等。
A split mirror is an identical, independent, and instantaneous copy of a disk volume that can be attached to a different system.
分割镜像(split mirror)是具有同一性、独立性、瞬时性的磁盘卷拷贝，分割镜像可以被附加在其他系统上。
It is important to note that the split mirror must remain in the write suspended state until it is copied on top of the source database.
请务必记住，分割镜像必须一直处于写暂挂状态，直到在源数据库上对其进行了复制。
The backup on the split mirror system will be capturing the state of the database containers on the source system at the time that the split occurred.
当发生分割时，分割镜像系统上的备份将捕捉源系统上的数据库容器的状态。
The same applies when initializing the split mirror using the db2inidb command, which must be run on each mirrored partition before using the database.
而使用db2inidb命令初始化分割镜像时也是如此，在使用数据库之前，必须在每个镜像分区上运行该命令。
A split mirror initialized as mirror can be used as a system level backup, allowing the administrator to perform a quick file system level recovery of the database.
初始化为镜像的分割镜像可以用作系统级备份，从而使管理员可以执行快速的文件系统级数据库恢复。
The relocate parameter invokes the db2relocatedb command in the background and thus allows initialization of the split mirror on the same system where the source database resides.
relocate参数在后台调用db2relocatedb命令，从而允许在源数据库所在的同一个系统上初始化分割镜像。
The db2inidb command provides the options to initialize a split mirror in three different ways (clone, standby, or mirror), allowing users to meet the various objectives of its usage.
db2inidb命令提供了三种不同的方法(clone、standby或mirror)来初始化分割镜像，从而使用户可以满足不同的目标。
The initialization of the split mirror as snapshot performs a crash recovery, rolls back all uncommitted transactions, and makes the database available for any read or write operation.
将分割镜像初始化为快照时，将执行崩溃恢复，回滚所有未提交的事务，并使数据库可以被所有读或写操作访问。
When using a split mirror solution, it is recommended to create a single database in a database path so that the local database directory (" sqldbdir ") only has the entry for a single database.
在使用分割镜像解决方案时，建议在一个数据库路径中只创建一个数据库，这样，在本地数据库目录(sqldbdir)中，每个数据库只有一个对应的条目。
Once the db2inidb command with the snapshot parameter is issued against a split mirror, whether it succeeds or fails, the standby or mirror parameter cannot be used as it starts a new log chain.
当对一个分割镜像发出带snapshot参数的db2inidb命令时，不管成功与否，都不能使用standby或mirror参数，因为该命令启动了一个新的日志链。
Once the db2inidb command with the snapshot parameter is issued against a split mirror, whether it succeeds or fails, the standby or mirror parameter cannot be used as it starts a new log chain.
当对一个分割镜像发出带snapshot参数的db2inidb命令时，不管成功与否，都不能使用standby或mirror参数，因为该命令启动了一个新的日志链。
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