As we now have an "all IBM" policy it didn't occur to me that it could be a 
non-ibm message.
I have looked for the ARC1001I message with the result as below... 

The whole error message (some line cutted at the end):

ARC1020I DFSMSHSM IS RECALLING FROM DASD DSN=P950OBA.A.CNTL, YOU MAY CONTINUE T
SSION BY PRESSING THE ATTENTION KEY                                             
 11/10/27 10:07:04 ECA1004E RECALL OF P950OBA.A.CNTL FAILED.  RETURN CODE: 4764.
 ARC1010I USER REQUEST FOR A MIGRATED DATA SET FAILED.                          
 ARC1001I P950OBA.A.CNTL  RECALL FAILED, RC=0099, REAS=4764                     
 ARC1199I ERROR DURING RECALL/RECOVERY                                          
 ***                                                                            

Whats more irritating is that when looking at ARC1001I, the reasoncode is not 
found in the manual.
(z/OS V1R1.0 MVS System Messages, Vol 2 (ARC-ASA) - which is where the link 
from z/OS V1R13.0 DFSMShsm Diagnosis is pointing to.)
That is, they say:

2.671 ARC1001I

   ARC1001I {dsname | VOL=volser | command} operation FAILED, RC=retcode
          REAS=reascode

Explanation: A DFSMShsm request has failed. The following describes the message 
variables:

    * dsname indicates the name of the data set.
    * volser indicates the volume serial number.
    * command indicates the command and its associated command parameters.
    * operation indicates the requested operation.
    * retcode indicates the return code.
    * reascode indicates the reason code.

A following related message provides you with further information about the 
failure. The two digits of the message number specified as nn, indicate the 
retcode. The related message number also indicates the DFSMShsm function 
processing when the failure has occurred, as shown on the following table.


        
 Table 2. Return Code Identifier                                        
                           Function                          Message Group 
                    Recovery/Recall                               ARC11nns 
                   Space Management                               ARC12nns 
                             Backup                               ARC13nns 
          Aggregate Backup/Recovery                               ARC6nnns 


For example, if the related message is ARC1131I:

    * ARC1131I indicates that the recovery/recall function has failed. The nn 
is 31 which is the retcode. See Table 3 in topic 2.1266 for the meaning of 
retcode 31 or refer to message ARC1131I for expanded information.



- So I look at ARC1199, where I find:

2.787 ARC1199I

   ARC1199I ERROR DURING RECALL/RECOVERY

Explanation: An error was detected while DFSMShsm was performing a recall or 
recovery operation. The return and reason code are given in message ARC1001I. 
The possible values for the reason code are:

Reascode Meaning

4
    A data set was requested to be reblocked and the accumulated record length 
was greater than the DCBLRECL.

8
    A direct access data set was targeted to a volume with a smaller track 
capacity than the volume where the data set originally resided.

12
    The DFSMShsm CDS record that describes the data set indicated a source 
volume device type that is not supported by DFSMShsm.



- Non sequitur AFAICS.  I the look in "ARC Return Codes and Reason Codes"  
where I finally find:

" 99             VBS data set RECOVER/RECALL attempted to incompatible device."

- Which is somewhat unlikely for a JCL dataset. 

- REAS=4764 is nowhere to find                      
 

 
Regards, 
Thomas Berg 
_________________________________________ 
Thomas Berg   Specialist   A M   SWEDBANK 





> -----Ursprungligt meddelande-----
> Från: IBM Mainframe Discussion List [mailto:[email protected]] För Lutz
> Hamann
> Skickat: den 27 oktober 2011 12:05
> Till: [email protected]
> Ämne: Re: Which manual for ECA* messages ?
> 
> Thomas,
> 
> looks like it is a HSM-Migrator message from EMC.
> 
>      ECA1004E Recall of dsn Failed. Return Code: return code
> 
> 
>    ciao  Lutz
> 
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