19c
新特性数据库整合之多租户
Q&A
的重做日志也是隔离的吗?
的重做日志是与
共享的,一个租户里面只有
实例
级别的重做日志。
里面所有的
都共享
的重做日志
组。
快照
需要那种底层存储支持?
使用
支持
功能可以使用存储
的
特性来快速建立快照克隆。支持存储类型如
下:
NAS Storage: Currently certified for ZFS Storage Appliances and NetApp
Storage Appliances, this method enables storage administrators to register
storage appliances with Enterprise Manager and then connect directly to the
storage appliance to perform all required snapshot and clone operations.
SAN Storage: Snap Clone provides the ability to create ‘live’ thin clones of
databases on ASM on EMC storage.
Filesystem Support: Snap Clone supports multiple file system protocols—
including Solaris File System (ZFS File System), ACFS, and DNFS. These
methods provide storage vendor agnostic solutions and can be used by a
variety of storage vendors. It is easy to setup and works on all platforms.
Engineered Systems: Snap Clone on Exadata leverages “sparse diskgroups”
and provides fast, space-efficient snapshot database creation. Integration with
Oracle Database Multitenant enables creation of DB snapshots with a single
click.
远程
克隆用
那对于网络带宽什么要求?
远程克隆对网络带宽没有要求,数据库会自动在后台复制数据
文件到目标端,复制过程不会对源端数据库产生影响。但是如
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