一、概述 聚类(Clustering)是一种无监督学习(Unsupervised Learning),即训练样本的标记信息是未知的。聚类既可以通过对无标记训练样本的学习来揭示数据的内在性质及规律,找寻数据内在的分布结构,也可以作为分类等其他学习... 联想小新蓝屏问题解决方法三步走!
(2).Detecting Node Failure One of the most difficult tasks in clustering is correctly discriminating between loss of a system and loss of communication between systems. There are several technologies used for this purpose, including heartbeat networks between servers, quorum disks, and SCSI reservatio...
VCS的几个常用场景 LocalClustering LAN MetropolitanHADisasterRecovery(overSAN,MANorLAN)MAN WideAreaDisasterRecovery WAN ClusterServer ClusterServer,VolumeManager ClusterServer,VolumeManager,VolumeReplicator,GlobalClusterManager Page4 Clustering:ApplicationandDatabaseFailover数据库和应用的失效转移 APPLICATION Database ...
(2).Detecting Node Failure One of the most difficult tasks in clustering is correctly discriminating between loss of a system and loss of communication between systems. There are several technologies used for this purpose, including heartbeat networks between servers, quorum disks, and SCSI reservatio...
1、VERITAS Cluster Server,Page 2,CONTENTS,VCS 预备知识 VCS的基本概念和术语 VCS的管理集群服务 VCS常见问题的解决 总结,VCS预备知识,Page 4,Metropolitan HA Disaster Recovery (over SAN, MAN or LAN),Wide Area Disaster Recovery,VCS的几个常用场景,LAN,Local Clustering,MAN,WAN,Cluster Server,Cluster ...
Active/Active Clustering(互备方式) “symmetric configuration”(对称配置):两个 节点提供不同的服务,互相备用,当一个节点 故障,服务马上有第二个节点接管服务 基本概念和术语: 集群 Several networked systems 几个节点 Shared storage 共享存储 Single administrative entity 单个管理节点 Peer monitoring 相互监控 ...
(应用的失效转移是由服务组来控制的) Active/Passive Clustering (主备方式)“asymmetric configuration”(非对称配置) Active/Active Clustering (互备方式)“symmetric configuration”(对称配置) VCS 的基本概念和术语 集群 Several networked systems几个节点 Shared storage共享存储 Single administrative entity单个管理...
Thenodeidis assigned by Nuxeo from the configuredrepository.clustering.id. Thecreateddate is not used by Nuxeo but is useful for diagnostics. The cluster invalidations are inserted when a transaction commits, the invalidation rows are duplicated for all cluster node ids that are not the current cl...
Local Clustering (LAN) One Cluster VM/VCS Shared Storage SAN or Direct Attached One Cluster VM/VCS Remote Mirror SAN Attached; Fibre 2 or more Clusters VVR/VCS/GCM Replica IP; DWDM; Escon One Cluster VVR/VCS Replica IP; DWDM; Escon ...
clustering”，我接触的用户用的不是特别多，一般都是大用户用，系统小的很少使用这种模式。它需要在domino中做特殊的设置，需要结合Replicator使用。它的特点：domino的主句间可以做“workload balancing”，对domino client没影响。还可以在不同的操作系统间做cluster。至于用哪一种要看用的需求了。