ORA-29701: unable to connect to Cluster Synchronization Service

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问题描述

当启动ASM实例时出现以下错误：

[grid@strong ~]$ sqlplus / as sysasmSQL*Plus: Release 11.2.0.4.0 Production on Sat Sep 30 17:35:34 2017Copyright (c) 1982, 2013, Oracle. All rights reserved.Connected to an idle instance.SQL> startupORA-01078: failure in processing system parametersORA-29701: unable to connect to Cluster Synchronization ServiceSQL>

解决办法

出现上面的错误，原因是没有启动CSS（Cluster Synchronization Services），查看CSS状态如下：

[grid@strong ~]$ crsctl check cssCRS-4530: Communications failure contacting Cluster Synchronization Services daemon启动CSS：[grid@strong ~]$ crsctl start resource ora.cssdCRS-2672: Attempting to start 'ora.cssd' on 'strong'CRS-2672: Attempting to start 'ora.diskmon' on 'strong'CRS-2676: Start of 'ora.diskmon' on 'strong' succeededCRS-2676: Start of 'ora.cssd' on 'strong' succeeded[grid@strong ~]$ crsctl check cssCRS-4529: Cluster Synchronization Services is online[grid@strong ~]$

再次启动ASM实例：

[grid@strong ~]$ sqlplus / as sysasmSQL*Plus: Release 11.2.0.4.0 Production on Sat Sep 30 17:51:21 2017Copyright (c) 1982, 2013, Oracle. All rights reserved.Connected to an idle instance.SQL> startupASM instance startedTotal System Global Area 1135747072 bytesFixed Size2260728 bytesVariable Size1108320520 bytesASM Cache25165824 bytesASM diskgroups mountedSQL>

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