在实践中，大多数用户不需要关心DB 2对XML数据采用的新的物理存储管理体系结构。
As a practical matter, most users won't need to concern themselves with DB2's new physical storage management architecture for XML data.
这些管理数据存储在卷组的各个物理卷中。
This management data is stored on each physical volume of the volume group.
虚拟抽象被运用到服务器和存储，这样可以进行逻辑管理，而不是一个个的物理实体。
Virtual abstraction is employed so that servers and storage can be managed as logical rather than individual physical entities.
这是几个物理硬盘(两个或更多)有一个称为RAID的单元的管理的解决方法，它把他们变成了单一的、结合一体的数据存储块。
This is a solution where several physical hard disks (two or more) are governed by a unit called RAID controller, which turns them into a single, cohesive data storage block.
LVM是一种AIX磁盘管理系统，它可以在逻辑和物理存储之间映射数据。
LVM is an AIX disk management system that maps the data between logical and physical storage.
元数据——由于有着逻辑与物理位置之间的映射关系，因此对于一个运行的可靠系统来说存储元数据的管理显得极为关键。
Metadata – Since there is a mapping between logical and physical location, the storage metadata and its management becomes key to a working reliable system.
为了高效地管理XML数据，像传统的SQL数据类型一样，DB 2在内部使用XML数据模型作为逻辑数据模型，同时也作为物理存储的基本单元。
To efficiently manage XML data, like traditional SQL data types, DB2 USES the XML data model internally, as the logical data model and as the fundamental unit of physical storage.
但是成本可划分为两个高级类别：物理存储生态系统本身的成本和管理它的成本。
But cost can be divided into two high-level categories: the cost of the physical storage ecosystem itself and the cost of managing it.
正如前面所讨论的，ZFS合并了卷管理功能来提取底层物理存储设备到文件系统。
As discussed earlier, ZFS incorporates a volume-management function to abstract underlying physical storage devices to the file system.
veritas卷管理器(VxVM)是一个存储管理子系统，它允许您以逻辑设备(称为卷)的形式管理物理磁盘。
VERITAS volume Manager (VxVM) is a storage management subsystem that enables you to manage physical disks as logical devices called volumes.
它管理ajpe表中的对象与框架定义的关系，并且将内容链接到存储在AJPE_RESOURCES中的物理资源。
It manages the relationships between the objects and framework definitions within the AJPE table, and links the content to the physical resources stored within the AJPE_RESOURCES.
LVM系统确保逻辑卷在管理员物理地改变存储位置的同时能够继续正常操作。
The LVM system ensures that our logical volumes continue to operate perfectly while allowing the administrator to physically change where everything is stored.
如果要创建一个操作数据存储(operational data store,ODS)或主数据管理(MDM)系统来支持SOA解决方案，那么目标是这个数据存储的物理数据模型。
If an operational data store (ODS) or a master data management (MDM) system is to be created to support the SOA solution, then the target is the physical data model for this data store.
当在多个LPAR之间动态地管理内存时，Hypervisor必须使用分页设备存储共享内存池的物理内存不能储存的过剩内存。
As memory is dynamically managed among multiple LPARs, the Hypervisor has to use a paging device to back up the excess memory that it cannot back up using physical memory from the Shared memory pool.
一个真正的关系型数据库管理系统，既在逻辑层考虑到完全规范化的数据库，又提供数据的物理存储，这些数据为了高性能而被调整。
A true relational DBMS would allow for a fully normalized database at the logical level, while providing physical storage of data that is tuned for high performance.
存储范围分区的功能和管理。分区可能根据其它存储范围或从物理媒体中直接实现。
Capabilities and management of the storage extent partition. Partitions may be based on other storage extents or directly realized from a physical media.
这些抽象方法专门处理在物理数据存储区中的数据保存、数据加载和数据存储区管理。
The abstract methods deal specifically with saving and loading data to a physical data store, and with data store administration.
逻辑层分配了一个用来写数据到存储设备的缓冲区，物理层管理对存储设备的访问。
The logical layer allocates a buffer to use to write data to a storage device. The physical layer manages access to the storage device.
逻辑层分配了一个用来写数据到存储设备的缓冲区，物理层管理对存储设备的访问。
The logical layer allocates a buffer to use to write data to a storage device. The physical layer manages access to the storage device.
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