IC92937: BACKUP VM VIA VCB MAY FAIL WITH ANS1017E SESSION REJECTION FOR CONNECTION FAILURE

APAR status

• Closed as program error.

Error description

• Backup vm via VCB may fail with ANS1017E session rejection for
  connection failure though backup summary shows whole target
  objects has been backed up.
  It can occur when there is unexpected TCP/IP connection error
  during "backup vm" and will not persist for the next backup.
  When the problem occur, rerunning the backup is needed though
  summary indicates successful backups.
  
  Here are the example of standard output when the problem occur:
  ------------------------------
  Backup VM command started.  Total number of virtual machines to
  process: 1
  Backup of Virtual Machine 'VM_SAMPLE' started
  Mount virtual machine disk on backup proxy for VM 'VM_SAMPLE'
  Executing Operating System command or script:
     vcbMounter -h <HOSTNAME> -u administrator -p **** -a
  ipaddr:<IP ADDRESS> -r "<PATH>\fullvm\VM_SAMPLE\BACKUP_CURRENT"
  -t fullvm
  Finished command.  Return code is: 0
  ...
  Starting Full VM backup of Virtual Machine 'VM_SAMPLE'
  ...
  Backup processing of 'VMFULL' finished without failure.
  ...
  Total number of objects inspected:           10
  Total number of objects backed up:           10
  Total number of objects updated:              0
  Total number of objects rebound:              0
  Total number of objects deleted:              0
  Total number of objects expired:              0
  Total number of objects failed:               0
  Total number of subfile objects:              0
  Total number of bytes inspected:            1.0 TB
  Total number of bytes transferred:          1.0 TB
  Data transfer time:                   10,000.00 sec
  Network data transfer rate:          100,000.00 KB/sec
  Aggregate data transfer rate:          0,000.00 KB/sec
  Objects compressed by:                        0%
  Total data reduction ratio:                0.00%
  Subfile objects reduced by:                   0%
  Elapsed processing time:               07:00:00
  ANS1017E Session rejected: TCP/IP connection failure
  
  ANS4148E Full VM backup of Virtual Machine 'VM_SAMPLE' failed
  with RC -50
  ------------------------------
  
  
  Tivoli Storage Manager Versions Affected:  Tivoli Storage
  Manager Client 5.5, 6.1, 6.2.0 and 6.2.1 on Windows platform.
  
  
  Customer/L2 Diagnostics (If Applicable)
  By analyzing client trace with SERVICE class, the following log
  records will be seen.
  >>>
  ------------------------------
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : DccTaskStatus.cpp
  (1681): ccFinalStats: Restoring to SESS_NODE_SCHED
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : dscback.cpp
  (6661): DscBackupVMFull(): Backup for virtual machine
  'VM_SAMPLE'.  Number of Full VM backup objects backed up=10
  failed=0
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : dscback.cpp
  (6681): DscBackupVMFull(): Backup for virtual machine
  'VM_SAMPLE'.  Object Enum total size=*****
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : groups.cpp          (
  764): baCloseGroupLeader(): Entering, groupMcNum='*',
  groupObjID='*****'
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : session.cpp
  (2225): Address of buffer is  48b0068
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : cutxn.cpp           (
  282): cuBeginTxn: Sending a BeginTxn verb.
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : session.cpp
  (1615): Send Verb: Length:     4 Code: 00000012 Type: BeginTxn
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : commtcp.cpp
  (2131): TcpWrite(): Warning - protocol violation, session not
  open
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : commtcp.cpp
  (2309): TcpFlush: writebuff(0000000000000000), bufflen(0),
  lock(0000000000000000)
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : commtcp.cpp
  (2319): TcpFlush(): Warning - protocol violation, session not
  open
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : commtcp.cpp
  (2426): TcpFlush: error 10038 during send.
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : commtcp.cpp
  (2540): ANS1006I TCP/IP write error on socket = 4294967295,
  errno = 10038, reason : An operation was attempted on something
  that is not a socket.
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : session.cpp
  (1668): Send Verb: yyyy-mm-dd HH:MM:SS.sss [***] [***] :
  session.cpp         (1669): ...error
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : session.cpp
  (1672): sessSendVerb: Error sending Verb, rc: -50
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : session.cpp
  (4423): sessClose: Transitioning: sInit state ===> sInit state
  yyyy-mm-dd HH:MM:SS.sss [***] [***] : session.cpp
  (1847): sessClose: Session closed.
  ------------------------------
  
  
  Initial Impact: Low
  
  
  Additional Keywords: vcb vm 1017 10038 zz55 zz61 zz62
  

Local fix

• Use vStor alternative for VCB which is available with the 6.2.2
  or higher client
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Backup-archive client versions 5.5, 6.1,     *
  *                 6.2.0 and 6.2.1 running on all Microsoft     *
  *                 Windows platforms.                           *
  *                 Versions 6.3 and 6.4 are not affected.       *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION                   *
  ****************************************************************
  * RECOMMENDATION: Apply fixing level when available. This      *
  *                 problem is currently projected to be fixed   *
  *                 in level 6.2.2.Note that until the fixing    *
  *                 level is available, this information is      *
  *                 subject to change at the discretion of IBM.  *
  ****************************************************************
  *
  

Problem conclusion

• The problem has been fixed so that it no longer occurs
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• DSMC
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R62W PSY

     UP

• R63W PSY

     UP

• R64W PSY

     UP