Oracle Database 11g R2 for Linux版本已经正式发布一个星期了，一直没怎么理会，昨晚才用家里的台式机开始下载，感觉现在打开下载页面比以前快些了，不知道是不是错觉，等这个周末的时候再来折腾。可以从OTN上下载它们：
Oracle11g R2 for linux x86 Disk1 Disk2
Oracle11g R2 for linux x86_64 Disk1 Disk2
从这里阅读Online Document或者干脆down下来细细精读。
上星期去参加一客户的需要会，要升级SAP R34.7到ECC 6，同时将Oracle跨平台迁移、升级。客户的Oracle 9i现跑在HP 3440的小机上，迁移到IBM Power 6 P550上（2 个3.5 GHZ CPU + 32G Memory + EMC的存储），Oracle升级到10g。9i是不支持数据文件跨平台传输的，如果不借助第三方的软件如DSG RealSync，200+G的数据会影响公司业务。这里有二份来自互联网关于第三方容灾系统的文档（绝对不是在打广告），只是DSG RealSync正好能满足客户的需求，跨平台，升级，不中断业务，只是成本高了, 要不一步到位升级到11.2得了 
。新版本众多New Feature请参阅在线文档。
来看看Oracle的升级路线：
The path that you must take to upgrade to the new Oracle Database 11g release depends on the release number of your current database. It might not be possible to directly upgrade from your current release of Oracle Database to the latest release. Depending on your current release, you might be required to upgrade through one or more intermediate releases to upgrade to the new Oracle Database 11g release.
For example, if the current database is running release 8.1.6, then follow these steps:
1. Upgrade release 8.1.6 to release 8.1.7.4 using the instructions in Oracle8i Migration Release 3 (8.1.7).
2. Upgrade release 8.1.7.4 to release 10.2.0.4 using the instructions in Oracle Database Upgrade Guide Release 2 (10.2).
3. Upgrade release 10.2.0.4 to the new Oracle Database 11g release using the instructions in this guide.
Upgrade Paths
|
Current Release |
Upgrade Path |
|
7.3.3 and lower 7.3.4 8.0.3 8.0.4 8.0.5 8.0.6 8.1.5 8.1.6 8.1.7.4 9.0.1.4 |
Direct upgrade is not supported. Upgrade to an intermediate Oracle Database release before you can upgrade to thenew Oracle Database 11g release, as follows:
|
|
9.2.0.8 10.1.0.5 10.2.0.2 11.1.0.6 |
Direct upgrade to the new Oracle Database 11g release is supported from 9.2.0.8 or higher, 10.1.0.5 or higher, 10.2.0.2 or higher, and 11.1.0.6 or higher. Note that Oracle Clusterware release 10.2.0.x must be at release 10.2.0.3 (or higher), before you attempt to upgrade it to Oracle Clusterware 11g. For release 9.2.0.3, you must first upgrade to an intermediate Oracle Database release, as follows: 9.2.0.3 (or lower) -> 9.2.0.8 -> 11.2 |
-The End-
