XEN migration

Discussion in 'Server Operation' started by asdfg123, Nov 15, 2009.

  1. asdfg123

    asdfg123 New Member


    I have two server, the first is primary and the second one is backup.
    All DomU is 32bit.
    Migrate between 64bit and 64bit servers work, also between 32bit and 32bit. Configuration is thus OK.

    When I migrate from 64bit to 32bit, i have problem, this is error

    xm migrate --live test
    Error: /usr/lib/xen-3.2-1/bin/xc_save 24 66 0 0 1 failed
    Usage: xm migrate <Domain> <Host>
    Migrate a domain to another machine.
    -h, --help           Print this help.
    -l, --live           Use live migration.
    -p=portnum, --port=portnum
                         Use specified port for migration.
    -r=MBIT, --resource=MBIT
                         Set level of resource usage for migration.
    Error: /usr/lib/xen-3.2-1/bin/xc_save 24 66 0 0 1 failed
    Last edited: Nov 15, 2009
  2. falko

    falko Super Moderator ISPConfig Developer

    Any errors in your logs?
  3. asdfg123

    asdfg123 New Member

    [2009-11-15 13:45:52 26334] DEBUG (balloon:132) Balloon: 1612 KiB free; need 1024; done.
    [2009-11-15 13:45:52 26334] DEBUG (XendCheckpoint:91) [xc_save]: /usr/lib/xen-3.2-1/bin/xc_save 4 16 0 0 1
    [2009-11-15 13:45:52 26334] INFO (XendCheckpoint:373) Had 0 unexplained entries in p2m table
    [2009-11-15 13:45:53 26334] INFO (XendCheckpoint:373) Saving memory pages: iter 1   0%ERROR Internal error: Error when writing to state file (5) (errno 104)
    [2009-11-15 13:45:53 26334] INFO (XendCheckpoint:373) Save exit rc=1
    [2009-11-15 13:45:53 26334] ERROR (XendCheckpoint:144) Save failed on domain test (16).
    Traceback (most recent call last):
      File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendCheckpoint.py", line 112, in save
        forkHelper(cmd, fd, saveInputHandler, False)
      File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendCheckpoint.py", line 361, in forkHelper
        raise XendError("%s failed" % string.join(cmd))
    XendError: /usr/lib/xen-3.2-1/bin/xc_save 4 16 0 0 1 failed
    This is migration from 32bit Dom0 to 64bit Dom0, the installed system is 32bit debian lenny.
    xm_save works correct.

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