GabrielBrascher edited a comment on pull request #5410:
URL: https://github.com/apache/cloudstack/pull/5410#issuecomment-933534842
@sureshanaparti sorry for the delay, I have been debugging and running some
tests:
I am also pushing a commit (tested recently on it as well) which I am
addressing a review from @GutoVeronezi.
These are the output of my recent tests:
### 1 VM With local Root disk
**(i) Without volumes mapping:**
migrate virtualmachinewithvolume
virtualmachineid=1f83b074-2d25-4eb1-9e10-bf26ccb71e50
hostid=a19dcabd-53b6-44e4-9f57-2fa70d876ef8
=> Success
**(ii) With ROOT volume mapping:**
migrate virtualmachinewithvolume
virtualmachineid=1f83b074-2d25-4eb1-9e10-bf26ccb71e50
hostid=448a0207-975b-41e1-af07-0c6e55dae0b3
migrateto[0].volume=e6e28756-0beb-4f75-8e6e-9ba5cc50b983
migrateto[0].pool=887fe175-7422-4e3a-a9ed-392932afa631
=> Success
### 2 VM With local Root disk + Shared (RBD) DATA disk
**(i) Without volumes mapping:**
migrate virtualmachinewithvolume
virtualmachineid=1f83b074-2d25-4eb1-9e10-bf26ccb71e50
hostid=448a0207-975b-41e1-af07-0c6e55dae0b
=> Success
**(ii) With ROOT volume mapping:**
migrate virtualmachinewithvolume
virtualmachineid=0f6c2e2d-7960-4715-b0c9-8634ccc36548 hostid=
migrateto[0].volume=e6e28756-0beb-4f75-8e6e-9ba5cc50b983
migrateto[0].pool=2bfa2e18-d76f-46db-8605-4aafb1438030
=> Success
### 3 VM With local Root disk + Shared (NFS) DATA disk
**(i) Without volumes mapping:**
migrate virtualmachinewithvolume
virtualmachineid=1f83b074-2d25-4eb1-9e10-bf26ccb71e50
hostid=448a0207-975b-41e1-af07-0c6e55dae0b
=> Failed with error:`"Copy volume(s) to storage(s) [{volume: "13433", from:
"23", to:"26"}] and VM to host [{vm: "13452", from: "24", to:"46"}] failed in
StorageSystemDataMotionStrategy.copyAsync. Error message: [Exception during
migrate: org.libvirt.LibvirtException: internal error: unable to execute QEMU
command 'nbd-server-add': Block node is read-only]."`
### COnclusion
In conclusion, all tests worked fine for me, except for the one with the NFS
data disk (which seems to work with you).
I assume that the exception might be due to configurations in the NFS pool
or the Libvirt, due to "LibvirtException: internal error: unable to execute
QEMU command 'nbd-server-add': Block node is read-only."
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