IT 图片-Technology Pictures http://www.it-tupian.com 在这里通过图片分享最精彩的IT故事 Sun, 22 Apr 2012 14:57:37 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 ACFS Architecture Pic http://www.it-tupian.com/acfs-architecture-pic.html http://www.it-tupian.com/acfs-architecture-pic.html#comments Sun, 22 Apr 2012 14:57:37 +0000 maclean http://www.it-tupian.com/?p=302 ACFS Architecture Pic

 

this is a build slide first the current ASM paradigm. Then we add a volume manager that allows us the mount ASM Cluster or single instance file systems, take snapshots of those FS, and even lets us mount Linux ext3 file systems on these volumes. In earlier releases of Oracle Cluster Ready Service (CRS) and Oracle Real Application Clusters (RAC), you had to provision storage for Oracle Cluster Registry (OCR) /Vote files, ASM Spfile outside ASM. Prior to 10g you also had to find either a cluster file system or raw devices for the database files. Starting with Database 10g, database files could be stored in ASM. Now, in 11gR2, OCR/Vote files as well ASM Spfile can be stored in ASM. Wait! Isn't there a chicken and egg problem. How can you put the Cluster Registry in ASM when ASM isn't installed and running? We're not really going to discuss that today, but through cunning and magic, the CRS development team figured it out. Additionally, we introduce the ASM Filesystem, thus all other extended database related files can also be stored in ASM via ACFS filesystems. Note that files stored traditionally in ASM will continue to be stored in ASM. ACFS is not certified to be used to store database files. ACFS should house Database Oracle Home and other extensible data file types associated with the database

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]]> http://www.it-tupian.com/acfs-architecture-pic.html/feed 0 AD4J Architecture http://www.it-tupian.com/ad4j-architecture.html http://www.it-tupian.com/ad4j-architecture.html#comments Sun, 22 Apr 2012 14:50:42 +0000 maclean http://www.it-tupian.com/?p=299 AD4J Architecture

 

Operates at JVM native layer for <0.1% overhead Snapshots only taken in response to console requests On-demand snapshots for real-time diagnostics Snapshots at monitoring frequency for historical diagnosis Post processing in console and repository DB Agent allows the console to trace transaction from the application into the DB and back

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]]> http://www.it-tupian.com/ad4j-architecture.html/feed 0 图解Undo原理 http://www.it-tupian.com/%e5%9b%be%e8%a7%a3undo%e5%8e%9f%e7%90%86.html http://www.it-tupian.com/%e5%9b%be%e8%a7%a3undo%e5%8e%9f%e7%90%86.html#comments Thu, 16 Feb 2012 13:00:25 +0000 maclean http://www.it-tupian.com/?p=294 图解Undo原理：包括事务表Transaction Table、Undo Chains、和事务槽Interested Transaction List(ITLS)。

 

Transaction Table, Undo Chains and Interested Transaction Lists (ITLs) Mechanism by which Oracle maintains row level locking, Consistent Reads & block cleanouts.

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]]> http://www.it-tupian.com/%e5%9b%be%e8%a7%a3undo%e5%8e%9f%e7%90%86.html/feed 0 Performance comparison Raw device VS Ext2 VS Ext3 VS OCFS http://www.it-tupian.com/performance-comparison-raw-device-vs-ext2-vs-ext3-vs-ocfs.html http://www.it-tupian.com/performance-comparison-raw-device-vs-ext2-vs-ext3-vs-ocfs.html#comments Sun, 12 Feb 2012 15:41:01 +0000 maclean http://www.it-tupian.com/?p=287 Performance comparison Raw device VS Ext2 VS Ext3 VS OCFS

 

TPS Graph、 Input 、Output 、CPU usage

raw_performance1 raw_performance2 raw_performance3 raw_performance4

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]]> http://www.it-tupian.com/performance-comparison-raw-device-vs-ext2-vs-ext3-vs-ocfs.html/feed 0 Oracle数据库升级路线图 http://www.it-tupian.com/oracle%e6%95%b0%e6%8d%ae%e5%ba%93%e5%8d%87%e7%ba%a7%e8%b7%af%e7%ba%bf%e5%9b%be.html http://www.it-tupian.com/oracle%e6%95%b0%e6%8d%ae%e5%ba%93%e5%8d%87%e7%ba%a7%e8%b7%af%e7%ba%bf%e5%9b%be.html#comments Sun, 12 Feb 2012 13:21:57 +0000 maclean http://www.it-tupian.com/?p=282 Oracle Upgrade roadmap Oracle数据库升级路线图总览

Moving from much older releases of Oracle Database, it suggested that an upgrade to 9iR2 is done first.

Upgrade to Oracle Database 10g Release 2For all release upgrades, export/import will work as well.Direct upgrades to 11.1 are supported from 9.20.4 or higher, 10.1.0.x, 10.2.0.x.

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]]> http://www.it-tupian.com/oracle%e6%95%b0%e6%8d%ae%e5%ba%93%e5%8d%87%e7%ba%a7%e8%b7%af%e7%ba%bf%e5%9b%be.html/feed 0 图解Oracle RAC全局缓存等待事件Global Cache Wait Events http://www.it-tupian.com/%e5%9b%be%e8%a7%a3oracle-rac%e5%85%a8%e5%b1%80%e7%bc%93%e5%ad%98%e7%ad%89%e5%be%85%e4%ba%8b%e4%bb%b6global-cache-wait-events.html http://www.it-tupian.com/%e5%9b%be%e8%a7%a3oracle-rac%e5%85%a8%e5%b1%80%e7%bc%93%e5%ad%98%e7%ad%89%e5%be%85%e4%ba%8b%e4%bb%b6global-cache-wait-events.html#comments Fri, 10 Feb 2012 07:50:12 +0000 maclean http://www.it-tupian.com/?p=275 图解Oracle RAC全局缓存等待事件Global Cache Wait Events

 

2-way Block Request 2-way Grant 3-way block request Global Cache Wait Events

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]]> http://www.it-tupian.com/%e5%9b%be%e8%a7%a3oracle-rac%e5%85%a8%e5%b1%80%e7%bc%93%e5%ad%98%e7%ad%89%e5%be%85%e4%ba%8b%e4%bb%b6global-cache-wait-events.html/feed 0 如何给Exadata数据库一体机打补丁patching图解 http://www.it-tupian.com/%e5%a6%82%e4%bd%95%e7%bb%99exadata%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%80%e4%bd%93%e6%9c%ba%e6%89%93%e8%a1%a5%e4%b8%81patching%e5%9b%be%e8%a7%a3.html http://www.it-tupian.com/%e5%a6%82%e4%bd%95%e7%bb%99exadata%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%80%e4%bd%93%e6%9c%ba%e6%89%93%e8%a1%a5%e4%b8%81patching%e5%9b%be%e8%a7%a3.html#comments Fri, 10 Feb 2012 07:38:05 +0000 maclean http://www.it-tupian.com/?p=269 从图中可以看到使用ILOM为Infiniband 打补丁，而OS和固件使用oracle定制的minimal pack install.sh

 

database_Grid_infrastructure_bundle_patches exadata_patching

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]]> http://www.it-tupian.com/%e5%a6%82%e4%bd%95%e7%bb%99exadata%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%80%e4%bd%93%e6%9c%ba%e6%89%93%e8%a1%a5%e4%b8%81patching%e5%9b%be%e8%a7%a3.html/feed 0 Oracle GoldenGate Monitor架构图 http://www.it-tupian.com/oracle-goldengate-monitor%e6%9e%b6%e6%9e%84%e5%9b%be.html http://www.it-tupian.com/oracle-goldengate-monitor%e6%9e%b6%e6%9e%84%e5%9b%be.html#comments Wed, 08 Feb 2012 12:12:54 +0000 maclean http://www.it-tupian.com/?p=265 Oracle GoldenGate Monitor架构图

Monitor功能亮点 集中的记分牌界面(基于web)，监视所有Goldengate实例 自动发现Goldengate实例并动态监视 定制化视图 通过SNMP与企业监控产品集成 可以动态加入新的监控点 监控点数值被持久保存 客户化告警模板和告警通知 方案 – 一瞥看到端到端的设置 查看报告 – 来自每个进程的错误 goldengate_monitor_arch2

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]]> http://www.it-tupian.com/oracle-goldengate-monitor%e6%9e%b6%e6%9e%84%e5%9b%be.html/feed 0 Oracle Goldengate Director软件截面图 http://www.it-tupian.com/oracle-goldengate-director%e8%bd%af%e4%bb%b6%e6%88%aa%e9%9d%a2%e5%9b%be.html http://www.it-tupian.com/oracle-goldengate-director%e8%bd%af%e4%bb%b6%e6%88%aa%e9%9d%a2%e5%9b%be.html#comments Wed, 08 Feb 2012 12:10:23 +0000 maclean http://www.it-tupian.com/?p=261 Oracle Goldengate Director软件截面图

 

goldengate_director_client goldengate_director_web

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]]> http://www.it-tupian.com/oracle-goldengate-director%e8%bd%af%e4%bb%b6%e6%88%aa%e9%9d%a2%e5%9b%be.html/feed 0 没有Metalink账号的同学可以观赏下，My Oracle Support的主界面 http://www.it-tupian.com/%e6%b2%a1%e6%9c%89metalink%e8%b4%a6%e5%8f%b7%e7%9a%84%e5%90%8c%e5%ad%a6%e5%8f%af%e4%bb%a5%e8%a7%82%e8%b5%8f%e4%b8%8b%ef%bc%8cmy-oracle-support%e7%9a%84%e4%b8%bb%e7%95%8c%e9%9d%a2.html http://www.it-tupian.com/%e6%b2%a1%e6%9c%89metalink%e8%b4%a6%e5%8f%b7%e7%9a%84%e5%90%8c%e5%ad%a6%e5%8f%af%e4%bb%a5%e8%a7%82%e8%b5%8f%e4%b8%8b%ef%bc%8cmy-oracle-support%e7%9a%84%e4%b8%bb%e7%95%8c%e9%9d%a2.html#comments Wed, 08 Feb 2012 12:06:20 +0000 maclean http://www.it-tupian.com/?p=257 没有Metalink账号的同学可以观赏下，My Oracle Support Main Dashboard的主界面

 

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