oracle clusterware
oracle clusterware的執行環境由兩個磁碟檔案、若干後臺程式及網路元素組成。
oracle clusterware在執行過程中，需要兩個檔案，分別叫OCR和Voting Disk，這兩個檔案必須放在共享儲存上。這兩個檔案就是用於解決腦裂和健忘。每個檔案分配100MB大小就足夠了。
健忘問題是由於每個節點都有配置資訊的拷貝，修改節點的配置資訊不同步引起的。
oracle 採用的方法就是把這個配置檔案放在共享儲存上，這個檔案就是OCR Disk
oracle 採用的方法就是把這個配置檔案放在共享儲存上，這個檔案就是OCR Disk
Voting Disk這個檔案主要用於記錄節點中成員狀態，在出現“腦裂”時，仲裁哪個partition獲得叢集的控制權，而其他partition必須從叢集中剔除
Clusterware 由若干個程式組成，其中最重要的3個是CRSD、CSSD和EVMD
來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/25323853/viewspace-702091/，如需轉載，請註明出處，否則將追究法律責任。
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