Article ID: 128350, created on Feb 16, 2016, last review on Feb 16, 2016

  • Applies to:
  • Virtuozzo 6.0

Symptoms

Physical server to virtual machine (P2V) migration might fail on 5% progress. This would happen only on physical servers running Linux with kernel version 4.x.

pgmirate command output would resemble following:

# pmigrate h root:1q2w3e@10.94.17.97 v localhost/VM_4d3f5651_p2v'
Warning: the OS partition will be migrated only, the rest will be skipped
Connecting to root@10.94.17.97:0...
Querying configuration...
Migrating to /var/parallels/VM_4d3f5651_p2v ...
Operation progress 5 %
Error: P2V migration failed
For details, see the log file: /var/log/parallels.log

Meanwhile transporter log (/var/log/parallels.log) on a physical server shows following messages:

02-04 22:34:15.890 F /AgentCore:18066:18168/ Migrating basic partition 1
02-04 22:34:15.890 I /daw:18066:18168/ Initializing snapshot for volume : secbysec 0, exclude page file 1, exclude paths count 0
02-04 22:34:15.890 F /daw:18066:18168/ Error : Failed to create snapshot for volume
02-04 22:34:15.890 F /AgentCore:18066:18168/ Error: Failed to initialize snapshot with error : 0x8103246
02-04 22:34:15.890 F /AgentCore:18066:18168/ Error: Failed to create/initialize snapshot for volume with error : 0x8103246
02-04 22:34:15.890 F /AgentCore:18066:18168/ Error: Migrate basic partition failed with error 0x8103246
02-04 22:34:15.890 F /AgentCore:18066:18168/ Basic disk migration result 0x8103246
02-04 22:34:16.106 F /AgentCore:18066:18168/ Error : Current item migration failed with error 0x8103246

Cause

Snapapi module crucial for data transfer is not loaded during migration which leads to the failure.

Resolution

This issue has been recognized as a bug with internal ID #PSBM-43856. It will be fixed in one of the future updates.

Meanwhile, workaround is available - it's necessary to load the kernel module manually (on a physical server side), and re-run the migration:

# modprobe snapapi26

Search Words

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