IBM Support

SMS Activation fails when volume count or dynamic volume count is larger than the available units

Troubleshooting


Problem

IEF877E IEF244I IEF878I During activate of an SCDS when Dynamic Volume Count is greater than the number of enabled volumes in the Storage Group in which the CDS resides.                                        

Symptom

IEF244I IEESYSAS SMS - UNABLE TO ALLOCATE 8 UNIT(S) 793       
         AT LEAST 8 OFFLINE UNIT(S) NEEDED.                   
IEF877E IEESYSAS NEEDS 8 UNIT(S) 794                          
FOR SMS SYS00017                                              
FOR VOLUMES: PRIVAT-   8                                      
OFFLINE, NOT ACCESSIBLE                                       
0800 0803-0805 0809-080C 080E-0814 0816-0819                  
0F90-0F9F 0820 0822 0825-0828 082A-082F                       
IEF878I END OF IEF877E FOR IEESYSAS SMS SYS00017              
*12 IEF238D IEESYSAS - REPLY DEVICE NAME OR 'CANCEL'.         
R 12,CANCEL                                                   
IEE600I REPLY TO 12 IS;CANCEL                                 
IEF196I IEF506I IEESYSAS SMS SYS00017 - NO STORAGE VOLUMES.   
IEF196I 'VOLUME=PRIVATE' ASSUMED.                             
IGD058I UNEXPECTED ERROR WITH ACDS SMS.DVCACDS 802            
IGD058I RETURN CODE 12 REASON CODE 6066                       
IGD058I DIAGNOSTIC INFORMATION 2(00000004 00000484)           
*13 IGD040D UNABLE TO COMPLETE CONFIGURATION REQUEST:         
ACTIVATE SCDS AND ACDS - REPLY 'U' TO RETRY OR 'C' TO         
PURGE REQUEST                                                 
R 13,C                                                        
IEE600I REPLY TO 13 IS;C                                     
Other possible messages:
IGD057I ACDS PROD.SYS.SMS.ACDS1 RESOURCE UNAVAILABLE - 392
IGD057I RETURN CODE 00000004 REASON CODE 000002D6 010
IGD040D UNABLE TO COMPLETE CONFIGURATION REQUEST: ACTIVATE SCDS AND ACDS - REPLY 'U' TO RETRY OR 'C' TO PURGE REQUEST
R 10,C

Cause

If an ACDS and SCDS are created with a data class DYNAMIC VOLUME COUNT value greater than the number of available volumes in the storage group, IEF244I and IEF877E are issued when the user enters the SETSMS SCDS(xx) ACDS(yy) command.                             
SETSMS SCDS(SMS.DVCSCDS) ACDS(SMS.DVCACDS)                                                                             
 

Environment

Users at DFSMSdfp 1G0 and higher releases.

Diagnosing The Problem

IEF244I IEESYSAS SMS - UNABLE TO ALLOCATE 8 UNIT(S) 793       
         AT LEAST 8 OFFLINE UNIT(S) NEEDED.                   
IEF877E IEESYSAS NEEDS 8 UNIT(S) 794                          
FOR SMS SYS00017                                              
FOR VOLUMES: PRIVAT-   8                                      
OFFLINE, NOT ACCESSIBLE                                       
0800 0803-0805 0809-080C 080E-0814 0816-0819                  
0F90-0F9F 0820 0822 0825-0828 082A-082F                       
IEF878I END OF IEF877E FOR IEESYSAS SMS SYS00017              
*12 IEF238D IEESYSAS - REPLY DEVICE NAME OR 'CANCEL'.         
R 12,CANCEL                                                   
IEE600I REPLY TO 12 IS;CANCEL                                 
IEF196I IEF506I IEESYSAS SMS SYS00017 - NO STORAGE VOLUMES.   
IEF196I 'VOLUME=PRIVATE' ASSUMED.                             
IGD058I UNEXPECTED ERROR WITH ACDS SMS.DVCACDS 802            
IGD058I RETURN CODE 12 REASON CODE 6066                       
IGD058I DIAGNOSTIC INFORMATION 2(00000004 00000484)           
*13 IGD040D UNABLE TO COMPLETE CONFIGURATION REQUEST:         
ACTIVATE SCDS AND ACDS - REPLY 'U' TO RETRY OR 'C' TO         
PURGE REQUEST                                                 
R 13,C                                                        
IEE600I REPLY TO 13 IS;C                                     

Resolving The Problem

This is also documented in DOC APAR OA05848.
Circumvention is to use a data class with a dynamic volume count less than the total number of enabled volumes in the storage group and in the system. 
                                                                        
NOTE:  For a non SMS-managed  control data set, during an activation the Dynamic Volume Count or the Volume Count must be less than or equal to the number of volumes mounted as STORAGE.
IMPORTANT UPDATE FOR ANY SETSCDS COMMAND:                          
DUE TO A SOFTWARE RESTRICTION THESE MESSAGES WILL APPEAR FOR ANY CDS THAT IS SMS-MANAGED AND DEFINED WITH A DVC GREATER THAN THE VOLCOUNT.  THE ONLY CIRCUMVENTION IS TO REDEFINE THE CDS SO THAT THE VOLCOUNT IS EQUAL TO THE DVC, OR REMOVE THE DVC, OR MAKE IT NON SMS-MANAGED (NO STORAGE CLASS).                               

Document Location

Worldwide

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Document Information

Modified date:
28 August 2024

UID

ibm11283638