After having your
vCC environment ready with your clouds added, let's see how data flow works. In
this example we will copy a VM from vSphere Cloud to vCD Cloud.
First we will list
the steps to copy VM using vCC UI.
Note: The target vCD cloud must
have at least one Catalog (published or unpublished). Without catalog, copy
operation won't take place. We will see in details later.
Note: You need to select the
target vApp Network for the VM to be connected. This vApp network will be
created always in Fenced mode.
Now let's see what's
happening in the background from both vCC UI and vSphere Client.
Now let's explain
the output of vSphere Client using blocks.
1. Assuming vCC Server isn't
running SSL, vCC UI (vSphere Client or vcloud.vmware.com) will send copy
request to vCC Server on TCP port 80.
2. vCC Server will forward the
request on TCP port 443 to vCC Node (since SSL is enabled by default in
vCC Node).
3. vCC Node will send request to
vCenter Server (using REST API on TCP port 443) to initiate "Export
OVF Template" operation for the source VM.
4. Accordingly, vCenter Server
will locate the VM, start export task, and direct ESXi Server (hosting the
VM) that template should be exported in vCC-Node (the path will be
vCC-Node transfer storage).
Here
is a small hint about OVF templates.
OVF
Template can be exported in two formats:
- .ovf: The template is made of
multiple files which are the components of OVF.
- .ova: The template is made of one
file which combines all components.
OVF
Template is made of three components:
- Manifest
file (.mf):
This file contains SHA-1 digests of the other files and used by vCenter to
verify the integrity of other files. This file is protected by
certificate.
- OVF
Descriptor XML Document (.ovf): This file contains information about the template such
as virtual hardware used, requirements, product details, licensing, etc.
- Virtual Hard
Disk (.vmdk):
This represents that virtual hard disk which carries the actual data of
the VM. OVF templates support different virtual hard disk formats other
than VMDK which can be used by VMware vSphere.
Now let's see this operation from vCC-Node debugs (tail -f
/opt/vmware/hcagent/logs/hca.log).
!!! … vCC-Node received request from
vCC-Server to start copy operation. Although no connection request is listed,
but we can see that request received on tomcat-http service
which is the way of communication between vCC-Node and vCC-Server as we
mentioned in point 2. The connection between vCC-Node and vCC-Server is
pre-established the moment vCC-Node registers with vCC-Server.
[tomcat-http--22] INFO
c.v.hc.agent.service.TaskScheduler - Enter scheduleJob()
[tomcat-http--22] INFO
c.v.hc.agent.service.TaskScheduler - Enter scheduleJob()
[tomcat-http--22] DEBUG c.v.hc.agent.service.TaskScheduler - TaskType
copy
[tomcat-http--22] INFO
c.v.hc.agent.service.TaskScheduler - Exit scheduleJob()
[tomcat-http--22] INFO
c.v.hc.agent.service.TaskScheduler - Exit scheduleJob()
[tomcat-http--22] DEBUG c.vmware.hc.agent.business.task.Task -
isCompleted = false
!!! ... vCC-Node sent request to
vCenter Server (vCenter Server IP is 80.227.54.182) to start Export OVF Template operation as a reaction for copy request.
[taskExecutor-4] DEBUG c.v.h.a.service.TaskProgressUpdater - job name:
AgentGroup.copy.copy.4132570d-cb5e-4dcd-8aa9-812898536fcf
[taskExecutor-4] DEBUG c.vmware.hc.agent.business.task.Task - taskName
copy, progressLabel Exporting to source node.
[taskExecutor-4] DEBUG c.vmware.hc.agent.business.task.Task - taskName
copy, progressLabel Exporting to source node.
!!! ... vCenter Server responds to
the request with OVF Template components. The first component is VMDK file
which vCC-Node will start downloading. Important to note that vCC-Node will
connect directly to ESXi host to download VMDK file from datastore. Therefore,
vCC-Node should be able to connect to ESXi Host using https protocol. In our
example ESXi host IP is 10.157.102.10.The
details of ESXi Host IP and VMDK file name/hash will be provided to vCC-Node by
vCenter Server.
[taskExecutor-4] DEBUG c.v.h.a.s.v.i.VsphereStorageAdaptorImpl - Total
vmdk bytes to be written: 42949672960.
[taskExecutor-4] INFO c.v.h.a.s.v.i.VsphereStorageAdaptorImpl -
SHA1 digest for disk-0.vmdk : 96d36dba9aa974a83dc0eacf6a8bb3730af6029a
[taskExecutor-4] DEBUG c.v.h.a.s.v.i.VsphereStorageAdaptorImpl - Total
vmdk bytes written: 72704.
!!! … The second component is OVF
descriptor which will be copied from vCenter Server
[taskExecutor-4] DEBUG c.v.h.a.s.v.i.VsphereStorageAdaptorImpl - Writing
ovf Descriptor: <?xml version="1.0"
encoding="UTF-8"?>
<!--Generated by VMware VirtualCenter Server, User: EHDFCLOUD\baqari,
UTC time: 2013-03-15T17:37:10.37785Z-->
… output omitted ...
[taskExecutor-4] DEBUG c.v.h.a.s.v.i.VsphereStorageAdaptorImpl - Adding
descriptor.ovf to tar file.
[taskExecutor-4] DEBUG c.v.h.a.s.v.i.VsphereStorageAdaptorImpl -
Finished adding descriptor.ovf to tar file.
[taskExecutor-4] DEBUG
c.v.h.a.s.v.i.VsphereStorageAdaptorImpl - SHA1 digest for descriptor.ovf:
f78f35757d37ba8caa973e70a500addb79aca7a7
!!! … The last component is manifest
which is used for integrity check for both VMDK and Descriptor files. In
earlier debugs, we noticed that after each task SHA1 value is calculated (its
bolded for VMDK file and descriptor file). Each SHA1 value is added now to
manifest file.
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil - Figuring out
manifest file size...
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil - Manifest
file size: 121
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil - Adding
manifest to tar file: [ descriptor.mf ]...
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil -
SHA1(disk-0.vmdk)=96d36dba9aa974a83dc0eacf6a8bb3730af6029a
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil - added hash
for: disk-0.vmdk
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil -
SHA1(descriptor.ovf)=f78f35757d37ba8caa973e70a500addb79aca7a7
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil - added hash
for: descriptor.ovf
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil - finished
writing manifest to tar.
[taskExecutor-4] DEBUG c.v.h.a.storage.StorageAdaptorUtil - Finished
adding manifest to tar file: [ descriptor.mf ].
!!! … We noticed also that manifest
and descriptor files were compressed in tar file. This is due to the fact that
OVA template is generated for the VM which is one file including VMDK,
descriptor.mf, manifest. This is the nature of OVA templates as mentioned
earlier.
!!! … Now vCC-Node will logout from
vCenter Server as export operation is completed.
[taskExecutor-4] INFO
c.v.h.a.s.v.i.VsphereStorageAdaptorImpl - Done exporting OVA archive.
[taskExecutor-4] INFO
com.vmware.hc.agent.jobs.CopyJob - Exported from source to archive file:
4132570d-cb5e-4dcd-8aa9-812898536fcf/TEST-VM.ova
5. The initial copy request sent
from vCC-Server to vCC-Node includes copying the OVA template after export
to destination vCC-Node transfer storage. Copying between vCC-Nodes uses
checkpoint-restart. This is good to resume copying in case transfer fails
instead of zero-restart.
!!! … In our example the destenation
vCC-Node IP is 213.132.34.10
[taskExecutor-9] DEBUG c.vmware.hc.agent.business.task.Task - taskName
copy, progressLabel Transferring to destination node.
[taskExecutor-9] DEBUG c.vmware.hc.agent.business.task.Task - taskName
copy, progressLabel Transferring to destination node.
[tomcat-http--9] DEBUG c.vmware.hc.agent.business.task.Task -
isCompleted = false
[taskExecutor-9] DEBUG c.v.h.a.i.RemoteAgentStorageAdaptorImpl - Archive
file transferred 1.0. Total bytes transferred: [81708, 81708]
[taskExecutor-9] DEBUG c.v.h.a.i.RemoteAgentStorageAdaptorImpl - Archive
file transferred 1.0. Total bytes transferred: [81708, 81708]
[taskExecutor-9] INFO
com.vmware.hc.agent.jobs.CopyJob - Copied to destination node archive
file: /817479d6-7094-446e-aceb-847924ad205b/Copy_of_TEST-VM
6. Once copy is completed, the
destination vCC-Node will connect to vCD Server using REST API to start
importing OVA template as vApp Template in Org Catalog. Next will be
importing vApp from vApp Template. Both actions will require communication
in the background between vCD Server and associated vCenter Server which
we have seen in vSphere Client Snapshot above.
Note: This is the reason for saying earlier that we need to have
at least one Org Catalog for copy to be completed successfully.
[tomcat-http--26] DEBUG com.vmware.hc.vcd.VcdUtils - Updating
vcloudclient version to V5_1.
[tomcat-http--26] DEBUG com.vmware.hc.vcd.VcdUtils - Created
VcloudClient com.vmware.vcloud.sdk.VcloudClient@3ca1b989.
[tomcat-http--26] DEBUG com.vmware.hc.vcd.VcdUtils - VcloudClient
com.vmware.vcloud.sdk.VcloudClient@3ca1b989 login with vcloudToken
ZxbbBTI/A5GBWGv71Kh+529aWqMCnBpvRnQC13oHkYk= to
https://vcd.ehdf.com.
[tomcat-http--26] DEBUG c.v.h.c.impl.CloudConnectionFactory - Created
VcloudClient$$EnhancerByCGLIB$$841d9ec {}.
[tomcat-http--26] DEBUG com.vmware.hc.vcd.VcdUtils - VcloudClient
com.vmware.vcloud.sdk.VcloudClient@3ca1b989 logged out from
https://vcd.ehdf.com/api.
[taskExecutor-4] DEBUG c.v.h.a.service.TaskProgressUpdater - job name:
AgentGroup.import.import.0668f520-3e3a-4502-a750-04810e09acf9
[taskExecutor-4] DEBUG c.v.h.a.service.TaskProgressUpdater - jobName
import
[taskExecutor-4] DEBUG c.vmware.hc.agent.business.task.Task - taskName
import, progressLabel The task has completed
[taskExecutor-4] DEBUG c.vmware.hc.agent.business.task.Task - taskName
import, percent complete 100
[taskExecutor-4] DEBUG c.vmware.hc.agent.business.task.Task - taskName
import, state COMPLETED
[taskExecutor-4] DEBUG c.vmware.hc.agent.business.task.Task - taskName
import, completed true
Troubleshooting
vCloud Connector
1. Test the vCC Server
connections by logging on to the vCC Server.
2. Test the connection between
the vCC Server and a vCloud Director cloud:
3. Test the connection between
the vCC Server and a vCenter Server:
4. Test the connection between
the vCC Server and a vCC Node:
5. If you are surfacing the
vCloud Connector UI at vcloud.vmware.com, test the connection between vCC
Server and the website:
6. Test the vCC Node connections
used in the copy path by first logging on to the vCC Node located in the
vSphere internal cloud.
7. Test the connection between
the vCC Node and the vCenter Server:
8. Test the connection between
the vCC Node and the ESX host:
9. Test the connection between
the vSphere vCC Node and a vCloud Director vCC Node outside the firewall:
10. Log on to the vCloud Director
vCC Node.
11. Test the connection between
the vCloud Director vCC Node and the vCloud Director cloud:
You can check the
logs of vCC-Server and Node using GUI or Console. CLI Logs path is /opt/vmware/hcserver_or_hcagent/logs/hcs.log_or_hca.log.
To restart vCC-Node or vCC-Server service, use the command service tomcat-hcagent restart or service tomcat-hcserver restart.