Got it

Task of VM migration failed

Latest reply: Dec 6, 2021 17:35:53 489 5 1 0 0

[Issue Description]

[Issue symptom] End client reported it failed to live migrate one VM. 

001


[Scenario info] 

Server virtualiztion 
[Version] FusionCompute 6.3.1 
[Guest OS] Windows serve 2016 with RAW lun mapping

[Handling Process]

1.we checked the detailed error prompt, it shown host were busy or internal error. it's not helpful to locate the root cause. 
2.we collect the CNA logs and VRM logs to make further analysis. 
3.in logs, we found this VM has mounted three RAW devices, and there were some SCSI reservation lock generated by guest OS, it was used to ensure the consistency of read and write operations on the disk by multiple VMs. 


002


[Root Cause]

These SCSI reservation lock generated by guest OS blocked the the live migration.

[Solution]

Shutdown the VM, then set the CNA host to maintenance mode, power on the VM again, set original CNA host out of maintenance mode.


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alejandrolla
Created Jan 6, 2021 13:53:09

Thanks for the information
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alejandrolla
alejandrolla Created Jan 6, 2021 13:53:18 (0) (0)
 
MahMush
Moderator Author Created Jun 16, 2021 19:53:16

Nicely explained issue and the solution
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kunthea
Created Dec 4, 2021 11:03:50

nice
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user_3915171
Created Dec 6, 2021 17:35:53

great
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