在cloudstack的web操作页面上为虚机的卷创建快照，出现报错，大牛们帮我看看，小弟不胜感激。
报错信息：
Failed to create snapshot due to an internal error creating snapshot for volume
3
查看/var/log/messages的信息有如下信息：
Jan 16 11:10:43 mgmt automount[2350]: lookup_read_master: lookup(nisplus):
couldn't locate nis+ table auto.master
Jan 16 11:10:43 mgmt kernel: Installing knfsd (copyright (C) 1996
o...@monad.swb.de).
Jan 16 11:10:43 mgmt rpc.mountd[2396]: Version 1.2.3 starting
Jan 16 11:10:43 mgmt kernel: NFSD: Using /var/lib/nfs/v4recovery as the NFSv4
state recovery directory
Jan 16 11:10:43 mgmt kernel: NFSD: starting 90-second grace period
Jan 16 11:10:44 mgmt mcelog: failed to prefill DIMM database from DMI data
Jan 16 11:10:48 mgmt abrtd: Init complete, entering main loop
Jan 16 11:11:34 mgmt kernel: IPMI message handler: BMC returned incorrect
response, expected netfn 7 cmd 33, got netfn 7 cmd 34
查看/var/log/cloudstack/management/management-server.log的信息有如下错误：
2015-01-16 10:28:48,500 DEBUG [c.c.a.t.Request] (AgentManager-Handler-5:null)
Seq 1-456589455: Processing: { Ans: , MgmtId: 40376232520518, via: 1, Ver: v1,
Flags: 10,
[{"org.apache.cloudstack.storage.command.CopyCmdAnswer":{"result":false,"details":"Failed
to backup a7e5366c-95ef-4a67-ae81-9ec0618a04dc for disk
/mnt/d264fc96-fff7-3ce1-95c4-84a87af65f31/91e9d97b-ba5b-41a1-9353-797067744db7
to /mnt/9043d5c8-71f2-3772-8b0f-ba217122cb46/snapshots/2/3","wait":0}}] }
2015-01-16 10:28:48,500 DEBUG [c.c.a.t.Request] (Job-Executor-10:ctx-a18662a1
ctx-e67f51df) Seq 1-456589455: Received: { Ans: , MgmtId: 40376232520518, via:
1, Ver: v1, Flags: 10, { CopyCmdAnswer } }
2015-01-16 10:28:48,902 DEBUG [c.c.s.s.SnapshotManagerImpl]
(Job-Executor-10:ctx-a18662a1 ctx-e67f51df) Failed to create snapshot
com.cloud.utils.exception.CloudRuntimeException: Failed to backup
a7e5366c-95ef-4a67-ae81-9ec0618a04dc for disk
/mnt/d264fc96-fff7-3ce1-95c4-84a87af65f31/91e9d97b-ba5b-41a1-9353-797067744db7
to /mnt/9043d5c8-71f2-3772-8b0f-ba217122cb46/snapshots/2/3
at
org.apache.cloudstack.storage.snapshot.SnapshotServiceImpl.backupSnapshot(SnapshotServiceImpl.java:292)
at
org.apache.cloudstack.storage.snapshot.XenserverSnapshotStrategy.backupSnapshot(XenserverSnapshotStrategy.java:142)
at
org.apache.cloudstack.storage.snapshot.XenserverSnapshotStrategy.takeSnapshot(XenserverSnapshotStrategy.java:301)
at
com.cloud.storage.snapshot.SnapshotManagerImpl.takeSnapshot(SnapshotManagerImpl.java:945)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy160.takeSnapshot(Unknown Source)
at
org.apache.cloudstack.storage.volume.VolumeServiceImpl.takeSnapshot(VolumeServiceImpl.java:1381)
at
com.cloud.storage.VolumeApiServiceImpl.orchestrateTakeVolumeSnapshot(VolumeApiServiceImpl.java:1783)
at
com.cloud.storage.VolumeApiServiceImpl.takeSnapshot(VolumeApiServiceImpl.java:1724)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy196.takeSnapshot(Unknown Source)
at
org.apache.cloudstack.api.command.user.snapshot.CreateSnapshotCmd.execute(CreateSnapshotCmd.java:181)
at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:161)
at
com.cloud.api.ApiAsyncJobDispatcher.runJobInContext(ApiAsyncJobDispatcher.java:109)
at
com.cloud.api.ApiAsyncJobDispatcher$1.run(ApiAsyncJobDispatcher.java:66)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at
com.cloud.api.ApiAsyncJobDispatcher.runJob(ApiAsyncJobDispatcher.java:63)
at
org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:509)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
2015-01-16 10:28:49,044 DEBUG [o.a.c.s.v.VolumeServiceImpl]
(Job-Executor-10:ctx-a18662a1 ctx-e67f51df) Take snapshot: 3 failed
com.cloud.utils.exception.CloudRuntimeException: Failed to create snapshot
at
com.cloud.storage.snapshot.SnapshotManagerImpl.takeSnapshot(SnapshotManagerImpl.java:963)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy160.takeSnapshot(Unknown Source)
at
org.apache.cloudstack.storage.volume.VolumeServiceImpl.takeSnapshot(VolumeServiceImpl.java:1381)
at
com.cloud.storage.VolumeApiServiceImpl.orchestrateTakeVolumeSnapshot(VolumeApiServiceImpl.java:1783)
at
com.cloud.storage.VolumeApiServiceImpl.takeSnapshot(VolumeApiServiceImpl.java:1724)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy196.takeSnapshot(Unknown Source)
at
org.apache.cloudstack.api.command.user.snapshot.CreateSnapshotCmd.execute(CreateSnapshotCmd.java:181)
at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:161)
at
com.cloud.api.ApiAsyncJobDispatcher.runJobInContext(ApiAsyncJobDispatcher.java:109)
at
com.cloud.api.ApiAsyncJobDispatcher$1.run(ApiAsyncJobDispatcher.java:66)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at
com.cloud.api.ApiAsyncJobDispatcher.runJob(ApiAsyncJobDispatcher.java:63)
at
org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:509)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: com.cloud.utils.exception.CloudRuntimeException: Failed to backup
a7e5366c-95ef-4a67-ae81-9ec0618a04dc for disk
/mnt/d264fc96-fff7-3ce1-95c4-84a87af65f31/91e9d97b-ba5b-41a1-9353-797067744db7
to /mnt/9043d5c8-71f2-3772-8b0f-ba217122cb46/snapshots/2/3
at
org.apache.cloudstack.storage.snapshot.SnapshotServiceImpl.backupSnapshot(SnapshotServiceImpl.java:292)
at
org.apache.cloudstack.storage.snapshot.XenserverSnapshotStrategy.backupSnapshot(XenserverSnapshotStrategy.java:142)
at
org.apache.cloudstack.storage.snapshot.XenserverSnapshotStrategy.takeSnapshot(XenserverSnapshotStrategy.java:301)
at
com.cloud.storage.snapshot.SnapshotManagerImpl.takeSnapshot(SnapshotManagerImpl.java:945)
... 44 more
2015-01-16 10:28:49,045 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(Job-Executor-10:ctx-a18662a1) Complete async job-14, jobStatus: FAILED,
resultCode: 530, result:
org.apache.cloudstack.api.response.ExceptionResponse/null/{"uuidList":[],"errorcode":530,"errortext":"Failed
to create snapshot due to an internal error creating snapshot for volume 3"}
2015-01-16 10:28:49,119 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(Job-Executor-10:ctx-a18662a1) Done executing
org.apache.cloudstack.api.command.user.snapshot.CreateSnapshotCmd for job-14
2015-01-16 10:28:49,153 INFO [o.a.c.f.j.i.AsyncJobMonitor]
(Job-Executor-10:ctx-a18662a1) Remove job-14 from job monitoring
2015-01-16 10:28:49,565 DEBUG [c.c.a.ApiServlet]
(catalina-exec-16:ctx-508b1417) ===START=== 192.168.220.37 -- GET
command=queryAsyncJobResult&jobId=7461e7ef-93c0-47a6-83fe-b142593d42b6&response=json&sessionkey=lwh%2Ba7QV3jvDiEdPg2i44spsMUM%3D&_=1421375410127
2015-01-16 10:28:49,665 DEBUG [c.c.a.ApiServlet] (catalina-exec-16:ctx-508b1417
ctx-b091b789) ===END=== 192.168.220.37 -- GET
command=queryAsyncJobResult&jobId=7461e7ef-93c0-47a6-83fe-b142593d42b6&response=json&sessionkey=lwh%2Ba7QV3jvDiEdPg2i44spsMUM%3D&_=1421375410127
2015-01-16 10:28:50,348 DEBUG [c.c.s.s.SecondaryStorageManagerImpl]
(secstorage-1:ctx-293af423) Zone 1 is ready to launch secondary storage VM
2015-01-16 10:28:50,391 DEBUG [c.c.c.ConsoleProxyManagerImpl]
(consoleproxy-1:ctx-2fb16202) Zone 1 is ready to launch console proxy
2015-01-16 10:28:52,496 DEBUG [c.c.a.m.AgentManagerImpl]
(AgentManager-Handler-6:null) SeqA 2-520: Processing Seq 2-520: { Cmd ,
MgmtId: -1, via: 2, Ver: v1, Flags: 11,
[{"com.cloud.agent.api.ConsoleProxyLoadReportCommand":{"_proxyVmId":2,"_loadInfo":"{\n
\"connections\": []\n}","wait":0}}] }
2015-01-16 10:28:52,570 DEBUG [c.c.a.m.AgentManagerImpl]
(AgentManager-Handler-6:null) SeqA 2-520: Sending Seq 2-520: { Ans: , MgmtId:
40376232520518, via: 2, Ver: v1, Flags: 100010,
[{"com.cloud.agent.api.AgentControlAnswer":{"result":true,"wait":0}}] }
2015-01-16 10:28:53,410 DEBUG [c.c.s.StatsCollector]
(StatsCollector-3:ctx-cd96849a) StorageCollector is running...
2015-01-16 10:28:53,475 DEBUG [c.c.a.t.Request] (StatsCollector-3:ctx-cd96849a)
Seq 3-1162870869: Received: { Ans: , MgmtId: 40376232520518, via: 3, Ver: v1,
Flags: 10, { GetStorageStatsAnswer } }
2015-01-16 10:28:53,519 DEBUG [c.c.a.t.Request] (StatsCollector-3:ctx-cd96849a)
Seq 1-456589456: Received: { Ans: , MgmtId: 40376232520518, via: 1, Ver: v1,
Flags: 10, { GetStorageStatsAnswer } }
2015-01-16 10:28:57,504 DEBUG [c.c.a.m.AgentManagerImpl]
(AgentManager-Handler-9:null) SeqA 2-521: Processing Seq 2-521: { Cmd ,
MgmtId: -1, via: 2, Ver: v1, Flags: 11,
[{"com.cloud.agent.api.ConsoleProxyLoadReportCommand":{"_proxyVmId":2,"_loadInfo":"{\n
\"connections\": []\n}","wait":0}}] }
