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From Francois Gaudreault <fgaudrea...@cloudops.com>
Subject Snapshot and Template Issue with VMWare
Date Fri, 22 Feb 2013 03:51:47 GMT
Hi,

I don't know if this question has been asked before, but I have a weird 
issue with snapshots and VMWare 5.  The snapshot of a volume appears to 
be working fine on the VMWare side (I can see it in the vCenter task 
list), but the snapshot cannot be copied to the secondary storage NFS 
share.  The log file is a bit fuzzy about the exact cause, I do see 
couple errors. Maybe someone can shed some lights.  Thanks in advance, 
and let me know if I should open a case on the BTS!

I can confirm that CS sees my 2 hosts in the vCenter cluster as UP, and 
that the secondary storage is exported on each ESX servers as a NAS volume.

Errors from the log:
[...]
2013-02-21 16:53:40,226 WARN  [storage.snapshot.SnapshotManagerImpl] 
(Job-Executor-14:job-305) Storage unavailable
com.cloud.exception.StorageUnavailableException: Resource 
[StoragePool:211] is unreachable: Unable to send command to the pool 211 
due to there is no enabled hosts up in this cluster
     at 
com.cloud.storage.StorageManagerImpl.sendToPool(StorageManagerImpl.java:2206)
     at 
com.cloud.storage.StorageManagerImpl.sendToPool(StorageManagerImpl.java:2231)
     at 
com.cloud.storage.snapshot.SnapshotManagerImpl.sendToPool(SnapshotManagerImpl.java:212)
     at 
com.cloud.storage.snapshot.SnapshotManagerImpl.backupSnapshotToSecondaryStorage(SnapshotManagerImpl.java:596)
[...]
2013-02-21 16:53:40,258 ERROR [cloud.api.ApiDispatcher] 
(Job-Executor-14:job-305) Exception while executing CreateSnapshotCmd:
com.cloud.utils.exception.CloudRuntimeException: Created snapshot: 
com.cloud.storage.SnapshotVO$$EnhancerByCGLIB$$45ba3f8a@614ca297 on 
primary but failed to backup on secondary
     at 
com.cloud.storage.snapshot.SnapshotManagerImpl.createSnapshot(SnapshotManagerImpl.java:417)
     at 
com.cloud.utils.component.ComponentLocator$InterceptorDispatcher.intercept(ComponentLocator.java:1231)
     at 
com.cloud.storage.snapshot.SnapshotManagerImpl.createSnapshot(SnapshotManagerImpl.java:127)
[...]

This might also be another different issue.  CloudStack complains about 
the routing-8.ova template.

2013-02-21 16:49:31,713 DEBUG [vmware.manager.VmwareManagerImpl] 
(DirectAgent-279:172.30.100.30) mount.nfs: Connection timed out
2013-02-21 16:49:31,713 WARN  [vmware.manager.VmwareManagerImpl] 
(DirectAgent-279:172.30.100.30) Unable to mount 
172.30.104.200:/home/data/demo1_secondary due to mount.nfs: Connection 
timed out
2013-02-21 16:49:31,713 ERROR [vmware.manager.VmwareManagerImpl] 
(DirectAgent-279:172.30.100.30) Unable to create mount point for 
nfs://172.30.104.200/home/data/demo1_secondary
2013-02-21 16:49:31,713 INFO [vmware.manager.VmwareStorageManagerImpl] 
(DirectAgent-279:172.30.100.30) Secondary storage mount point: /mnt/sec
2013-02-21 16:49:31,713 INFO [vmware.manager.VmwareStorageManagerImpl] 
(DirectAgent-279:172.30.100.30) Executing command: tar --no-same-owner 
-xf /mnt/sec/template/tmpl/1/8/routing-8.ova
2013-02-21 16:49:31,713 DEBUG [vmware.manager.VmwareStorageManagerImpl] 
(DirectAgent-279:172.30.100.30) Executing: tar --no-same-owner -xf 
/mnt/sec/template/tmpl/1/8/routing-8.ova
2013-02-21 16:49:31,910 DEBUG [vmware.manager.VmwareManagerImpl] 
(DirectAgent-34:172.30.100.31) Executing: sudo mount -t nfs 
172.30.104.200:/home/data/demo1_secondary 
/var/lib/cloud/mnt/VM/152340872926777.3861298f
2013-02-21 16:49:32,071 WARN [vmware.manager.VmwareStorageManagerImpl] 
(DirectAgent-279:172.30.100.30) Exception: tar --no-same-owner -xf 
/mnt/sec/template/tmpl/1/8/routing-8.ova
java.io.IOException: Cannot run program "tar" (in directory 
"/mnt/sec/template/tmpl/1/8"): java.io.IOException: error=2, No such 
file or directory
     at java.lang.ProcessBuilder.start(ProcessBuilder.java:475)
     at com.cloud.utils.script.Script.execute(Script.java:181)
     at com.cloud.utils.script.Script.execute(Script.java:159)
2013-02-21 16:49:32,074 ERROR [vmware.manager.VmwareStorageManagerImpl] 
(DirectAgent-279:172.30.100.30) Unable to unpack snapshot OVA file at: 
/mnt/sec/template/tmpl/1/8/routing-8.ova
2013-02-21 16:49:32,074 ERROR [vmware.manager.VmwareStorageManagerImpl] 
(DirectAgent-279:172.30.100.30) Unable to execute 
PrimaryStorageDownloadCommand due to exception
java.lang.Exception: Unable to unpack snapshot OVA file at: 
/mnt/sec/template/tmpl/1/8/routing-8.ova

Thanks!

-- 
Francois Gaudreault
Architecte de Solution Cloud | Cloud Solutions Architect
fgaudreault@cloudops.com
- - -
CloudOps
420 rue Guy
Montréal QC  H3J 1S6
www.cloudops.com
@CloudOps_


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