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今天又回来看到这个帖子,关于HACMP版本的有些用词不是很准确,补充一下.\r\nHACMP在4.5以前是由四个版本的:\r\nEnhanced Scalability (ES) \r\nEnhanced Scalability Concurrent Resource Manager (ESCRM) \r\nHigh Availability Subsystem (HAS) \r\nConcurrent Resource Manager (CRM) \r\n\r\n但到了4.5的时候,HAS和CRM版取消了。只剩下ES和ESCRM。\r\n下面是原文的说明,懒得翻了,自己看吧。\r\n\r\nHACMP V4 is available in four different configurations: \r\n\r\nEnhanced Scalability (ES) \r\nES uses the infrastructure of Reliable Scalable Cluster Technology (RSCT) for AIX 5L to provide services for cluster membership, system management, configuration integrity and control, fallover, and recovery for up to 32 servers or nodes. ES provides cluster status and monitoring facilities for the programmer and system administrator, and allows customers to define their own HACMP events and monitor their applications. \r\n\r\n\r\nEnhanced Scalability Concurrent Resource Manager (ESCRM) \r\nESCRM contains all ES functions and adds concurrent shared-access management to ES, for supported RAID and SSA disk subsystems. Concurrent access is provided at the raw disk level. \r\n\r\n\r\nHigh Availability Subsystem (HAS) \r\nProvides base services for cluster membership, system management, configuration integrity and control, fallover, and recovery for up to eight servers or nodes. Simple cluster status and monitoring facilities are included. \r\n\r\n\r\nConcurrent Resource Manager (CRM) \r\nCRM contains all HAS functions and adds concurrent shared-access management to HAS for supported RAID and SSA disk subsystems. Concurrent access is provided at the raw disk level. \r\n\r\nIt is IBM\'s intent that HAS and CRM will not appear in future releases of HACMP. HACMP ES and ESCRM provide all of the functions of HAS and CRM respectively. ES and ESCRM are available at the same prices as HAS and CRM, while providing many additional capabilities. IBM encourages customers to plan their migration to the more powerful ES and ESCRM features. |
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