GENSVC99 An SVC 99 error has occurred in dynamic allocation

Products

• Vantage Storage Resource Manager

Issue/Introduction

Excessive SVC 99 errors are seen in the Vantage started task (SAMS). It appears as if not all storage pools are defined in the Vantage parmlib: 

VAN0901I GENSVC99 An SVC 99 error has occurred in dynamic -- allocation.                                         
VAN0901I GENSVC99 ---- DISP=SHR                                                                                  
VAN0901I GENSVC99 ---- VOLUME=vvvvvv                                                                             
VAN0901I GENSVC99 ---- UNIT=3390                                                                                 
VAN0901I GENSVC99 IKJ56893I UTILITY DATA SET NOT ALLOCATED+                                                      
VAN0901I GENSVC99 IGD17260I DATA SET XXXXXXX.XXXXXX.XXXX                                        
VAN0901I GENSVC99 NOT ALLOCATED                                                                                  
VAN0901I GENSVC99 BECAUSE STORAGE GROUP SGRP1 NOT ENABLED                                                     
VAN0723I REFRESH  of Automation Script SYSTEM   GRPSTATS Done-CnMax=00000 Now=0000000000 ExMax=001 Now  =000     
                             Enabled    

 

VAN0901I GENSVC99 An SVC 99 error has occurred in dynamic -- allocation.                                         
VAN0901I GENSVC99 ---- VOLUME=FS8AC8                                                                             
VAN0901I GENSVC99 IKJ56893I UTILITY DATA SET NOT ALLOCATED+                                                      
VAN0901I GENSVC99 ---- DISP=SHR                                                                                  
VAN0901I GENSVC99 ---- UNIT=3390                                                                                 
VAN0901I GENSVC99 IGD17260I DATA SET XXXXXXX.XXXXXX.XXXX                                        
VAN0901I GENSVC99 ---- VOLUME=vvvvvv                                                                             
VAN0901I GENSVC99 IKJ56893I UTILITY DATA SET NOT ALLOCATED+                                                      
VAN0901I GENSVC99 NOT ALLOCATED                                                                                  
VAN0901I GENSVC99 ---- UNIT=3390                                                                                 
VAN0901I GENSVC99 IGD17260I DATA SET XXXXXXX.XXXXXX.XXXX                                        
VAN0901I GENSVC99 IKJ56893I UTILITY DATA SET NOT ALLOCATED+                                                      
VAN0901I GENSVC99 BECAUSE STORAGE GROUP SGRP2 NOT ENABLED 

 

Environment

Vantage

Cause

The volumes (and related storage groups) that Vantage is attempting to access are not available to the system where Vantage is running.  Vantage generates the SVC 99 dynamic allocation error when attempting to allocate a temporary data set to one of these inaccessible volumes. 

Resolution

The INCLEXCL Vantage parmlib member is needed and should define filters to exclude volumes that the various Vantage components try to access via the Vantage DTOC scan.  Here is a sample of the components to modify, with example filters: 

 

START-EXCLUDE-VOL    Online Volumes

EXCL=PBS/  

EXCL=PNG/

..

START-DTOCVEXC-VOL    DTOC Volumes  

EXCL=PBS/

EXCL=PNG/  

..

START-DUPEDSNS-VOL    Duplicate Data Sets (Volumes Checked) 

EXCL=PBS/

EXCL=PNG/  

..

START-VSAMVVDS-VOL    VSAM Data Set Attributes (Volumes Checked) 

EXCL=PBS/

EXCL=PNG/ 

Additional Information

Here is some documentation describing the INCLEXCL Vantage Parmlib member (see section 'INCLEXCL - Local PARMLIB Member'): 

Configure Include/Exclude Statements