Removable storage导致不能Add host

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我是靠谱客的博主从容店员，最近开发中收集的这篇文章主要介绍Removable storage导致不能Add host，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

一台XenServer，曾用作为过cluster的Master，从CloudStack删除后，再次加入其他已有Master的Cluster，UI上报Unable to add the host错误，日志报“com.xensource.xenapi.Types$JoiningHostCannotContainSharedSrs Unable to allow host 20.1.101.19 to join pool 20.1.101.20 due to The host joining the pool cannot contain any shared storage.The host joining the pool cannot contain any shared storage.”异常。通过google，baidu均未发现解决方案，后来通过使用xe sr-list命令，发现有Removable storage的SR，host为not in database，分析属于异常情况，改SR如下：

uuid ( RO) : 5d938231-ee85-b668-5074-ffbbfd3c5c39

name-label ( RW): Removable storage

name-description ( RW):
host ( RO): <not in database>
type ( RO): udev

content-type ( RO): disk

uuid ( RO) : 5d938231-ee85-b668-5074-ffbbfd3c5c39
name-label ( RW) : Removable storage

name-description ( RW) :
host ( RO) : <not in database>
type ( RO) : udev
content-type ( RO) : disk

解决方法：forget这个SR（命令：xe sr-forget uuid=5d938231-ee85-b668-5074-ffbbfd3c5c39）后，再次add host就成功了。
注：实际中，我还forget了如下的SR。
uuid ( RO) : cc8aa0f5-eac3-3571-20e8-2eb500edbdd7
name-label ( RW) : DVD drives
name-description ( RW): Physical DVD drives
host ( RO) : <not in database>
type ( RO) : udev
content-type ( RO) : iso

日志内容：
2012-12-06 13:18:31,693 INFO [cloud.resource.ResourceManagerImpl] (catalina-exec-4:null) Trying to add a new host at http://20.1.101.19 in data center 1
2012-12-06 13:18:31,762 DEBUG [xen.resource.XenServerConnectionPool] (catalina-exec-4:null) Slave logon to 20.1.101.19
2012-12-06 13:18:31,789 DEBUG [xen.resource.XenServerConnectionPool] (catalina-exec-4:null) Logging on as the master to 20.1.101.19
2012-12-06 13:18:32,562 WARN [xen.resource.XenServerConnectionPool] (catalina-exec-4:null) Catch com.xensource.xenapi.Types$JoiningHostCannotContainSharedSrs Unable to allow host 20.1.101.19 to join pool 20.1.101.20 due to The host joining the pool cannot contain any shared storage.
The host joining the pool cannot contain any shared storage.
at com.xensource.xenapi.Types.checkResponse(Types.java:1000)
at com.xensource.xenapi.Connection.dispatch(Connection.java:372)
at com.xensource.xenapi.Pool.join(Pool.java:1058)
at com.cloud.hypervisor.xen.resource.XenServerConnectionPool.join(XenServerConnectionPool.java:781)
at com.cloud.hypervisor.xen.resource.XenServerConnectionPool.joinPool(XenServerConnectionPool.java:155)
at com.cloud.hypervisor.xen.discoverer.XcpServerDiscoverer.addHostsToPool(XcpServerDiscoverer.java:395)
at com.cloud.hypervisor.xen.discoverer.XcpServerDiscoverer.find(XcpServerDiscoverer.java:202)
at com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:644)
at com.cloud.resource.ResourceManagerImpl.discoverHosts(ResourceManagerImpl.java:514)
at com.cloud.api.commands.AddHostCmd.execute(AddHostCmd.java:136)
at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:132)
at com.cloud.api.ApiServer.queueCommand(ApiServer.java:509)
at com.cloud.api.ApiServer.handleRequest(ApiServer.java:416)
at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:300)
at com.cloud.api.ApiServlet.doGet(ApiServlet.java:59)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:721)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2260)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
2012-12-06 13:18:32,565 DEBUG [xen.resource.XenServerConnectionPool] (catalina-exec-4:null) Host(20.1.101.19) unable to Join the pool at 20.1.101.20
2012-12-06 13:18:32,565 WARN [xen.discoverer.XcpServerDiscoverer] (catalina-exec-4:null) Unable to join the pool
2012-12-06 13:18:32,567 DEBUG [xen.discoverer.XcpServerDiscoverer] (catalina-exec-4:null) other exceptions: com.cloud.exception.DiscoveryException: Unable to join the pool
com.cloud.exception.DiscoveryException: Unable to join the pool
at com.cloud.hypervisor.xen.discoverer.XcpServerDiscoverer.addHostsToPool(XcpServerDiscoverer.java:397)
at com.cloud.hypervisor.xen.discoverer.XcpServerDiscoverer.find(XcpServerDiscoverer.java:202)
at com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:644)
at com.cloud.resource.ResourceManagerImpl.discoverHosts(ResourceManagerImpl.java:514)
at com.cloud.api.commands.AddHostCmd.execute(AddHostCmd.java:136)
at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:132)
at com.cloud.api.ApiServer.queueCommand(ApiServer.java:509)
at com.cloud.api.ApiServer.handleRequest(ApiServer.java:416)
at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:300)
at com.cloud.api.ApiServlet.doGet(ApiServlet.java:59)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at com.cloud.api.ApiServer.handleRequest(ApiServer.java:416)
at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:300)
at com.cloud.api.ApiServlet.doGet(ApiServlet.java:59)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:721)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2260)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
2012-12-06 13:18:32,568 WARN [cloud.resource.ResourceManagerImpl] (catalina-exec-4:null) Unable to find the server resources at http://20.1.101.19
2012-12-06 13:18:32,568 WARN [api.commands.AddHostCmd] (catalina-exec-4:null) Exception:
com.cloud.exception.DiscoveryException: Unable to add the host
at com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:694)
at com.cloud.resource.ResourceManagerImpl.discoverHosts(ResourceManagerImpl.java:514)
at com.cloud.api.commands.AddHostCmd.execute(AddHostCmd.java:136)
at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:132)
at com.cloud.api.ApiServer.queueCommand(ApiServer.java:509)
at com.cloud.api.ApiServer.handleRequest(ApiServer.java:416)
at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:300)
at com.cloud.api.ApiServlet.doGet(ApiServlet.java:59)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:721)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2260)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)