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IC62220: A TSM LANFREE BACKUP OR RESTORE MAY FAIL AFTER THE LANFREE PROXY SESSION REACHES THE SERVER TIMEOUT VALUE.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The lanfree session or proxy node type session can stay
    Resource Waiting , idleW or RecW while  the storage agent active
    read or write data to a media.  This type of session will
    timeout after waiting time reaches the according server timeout
    value and cause the according lanfree backup or restore to fail.
    The timeout includes  Resourcetimeout, idletimeout and
    commtimeout.
    
    L2/Customer diagnostic:
    
    A lanfree restore was run with the following tsm server timeout
    value:
    
    Resourcetimeout 60
    Commtimout  1200
    idletimeout     120
    
    
    
    1:  The  command routing a storage agent  "STANAME: q sess f=d "
    shows the storage agent session number  624  is active storing
    data.
    
    624     Tcp/Ip     SendW        0 S      707.2 M         440
    Node      Proxyno-     nodename      Current input
    volumes:  QB3553,(3300)
    
    
    The "show session" TSM server command shows the TSM server
    session for storage agent session 624 is session 45226:
    
    Session 45226:    Type=Node,   Id=NODENAME
       Platform=AIX, NodeId=154, Owner=
       SessType=4, Index=20, TermReason=0
       threadId=129707
       ProxyByAgent True
       Agent STANAME (5.5.1.1) for agent session 624.
    
    "q sess " command and "show resq " command shows session  45226
    is in idleW and resouceW, although the lanfree session 624 is
    active:
    
    45,226     Tcp/Ip     IdleW      55M        1.1 K       1.2 K
    Node      AIX          nodename    staname
    
    Local Session Num is 45226 session desciptor=989152344.
    status=resWaiting waitTime=55 minutes
    waiter Type=resWaitSession timeout value=60 minutes
    txnSeqNo=0:0 resourceName=(*NULL*) lengthLen=0
    type=0 and nameSpace=0
    waiter thead id is 129707 condition=0
     mutex= 0 abortFunc=0
    
    
    The example  Resourcetimeout  (60mis ) is lower then idletimeout
    (120mins). Session  45226 failed after its Resource waitTime
    reached 60mins, The  lanfree  restore failed with the following
    command logged in the TSM server  activity log:
    
    
    ANR0538I A resource waiter has been aborted.(SESSION:  45226)
    ANR0490I Canceling session 624 for node Node_name (XXX) .
    (SESSION: 45226)
    
    TSM Versions Affected:
    TSM server 5.4, 5.5, 6.1 on all supported platforms
    
    Initial Impact:
    High
    
    Additional Keywords:
    timeout lanfree proxy keepalive keep alive Resourcetimeout
    idletimeout commtimeout storage agent MR030209637
    

Local fix

  • Increase the TSM server's timeout  to a value greater than the
    length of a lanfree backup or a lanfree restore to  prevent the
    timeout from happening.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Manager servers           *
    *                 performing LAN-Free data movement            *
    *                 operations.                                  *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available.           *
    *                 This problem is currently projected          *
    *                 to be fixed in levels 5.4.6, 5.5.4,          *
    *                 and 6.1.3. Note that this is subject         *
    *                 to change at the discretion of IBM.          *
    *                                                              *
    ****************************************************************
    *
    

Problem conclusion

  • This problem was fixed.  Note that the fix was delivered
    in the storage agent at the levels listed. A server
    at the fixed levels might still experience this issue with
    LAN-free operations that are performed using storage
    agents that are not at or above the listed fix levels.
    
    Affected platforms V5.5.4:  AIX, HP-UX,
      Sun Solaris, Linux, z/OS, and Windows.
    
    Affected platforms V6.1.3:  AIX, HP-UX,
      Sun Solaris, Linux, and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC62220

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    55A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-07-27

  • Closed date

    2009-08-18

  • Last modified date

    2010-04-22

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

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

Fix information

  • Fixed component name

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R55Z PSY

       UP

  • R61Z PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 55A

Reference #: IC62220

Modified date: 22 April 2010