Entry Types That Can Be Altered

An "X" in Table 1 indicates that you can alter the value or attribute for the type of catalog entry that is shown. Some attributes only apply to either the data or the index component of a cluster or alternate index entry. You can use some attributes only for the data or index component of a cluster or alternate index entry; you must then identify the entryname of the component. Use the LISTCAT command to determine the names generated for the object's components.

You can identify a group of entries with a generic name. Entrynames that match the supplied qualifiers are altered if they have the information that is used with the ALTER command.

You cannot alter alias entries or a master catalog's self-describing entries, nor can you change a fixed-length relative record data set to a variable-length relative record data set, or the reverse. You cannot change a linear data set (LDS) to any other VSAM data set format. Any attempt to alter a data set defined with a device type named by the user (for example, SYSDA) is unsuccessful.

When the data set characteristics being altered are for a compressed data set, the maximum record length of the control interval size is less than if compression is not done.

Table 1. ALTER Attributes That Can be Altered and Types of Catalog Entries
Alterable attributes ALT INDEX DATA SET ALT INDEX XDATA ALT INDEX INDEX CLUS TER CLUS TER DATA CLUS TER INDEX PAGE SPACE PATH USER CAT DATA USER CAT INDEX NON VSAM GDG
ACCOUNT         X           X  
ADDVOLUME   X X   X X         X  
BUFFERSPACE   X     X       X      
BUFND                 X      
BUFNI                   X    
BWO       X                
CCSID       X X           X  
ECSHARING       X1                
EMPTY                       X
ERASE   X     X              
EXCEPTIONEXIT   X X   X X            

EXTENDED
ADDRESSABLE

       X                
FIFO                       X
FILEDATA       X X           X  
FOR X     X       X X   X  
FREESPACE   X     X       X      
INHIBIT   X X   X X            
KEYS X X   X X              
LIFO                       X
LIMIT                       X
LOCK       X1                
LOG       X                
LOGREPLICATE       X                
LOGSTREAMID       X                

MANAGEMENT
CLASS

       X         X   X  
MASTERPW X X X X X X X X X      
NOECSHARING       X                
NEWNAME X X X X X X X X     X  
NOEMPTY                       X
NOERASE   X     X              
NOLOGREPLICATE       X               X
Start of changeNOPURGEEnd of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of changeXEnd of change
NOUNIQUEKEY   X                    
NORECLAIMCA       X                
NOREUSE       X                
NOSCRATCH                       X
NOUPDATE               X        
NOUPGRADE X                      
NOWRITECHECK   X X   X X     X X    
NULLIFY X X X X X X X X X   X X
   AUTHORIZATION X X X X X X X X X      
   BWO       X X              
   CODE X X X X X X X X X      
   EXCEPTIONEXIT   X X X X X            
   LOG       X X              
   LOGSTREAMID       X X              
   

MANAGEMENT
CLASS

       X         X X    
   OWNER X X X X X X X X X   X X
   RETENTION X     X     X X X   X  
OAM2                        
OWNER X X X X X X X X X   X X
Start of changePURGEEnd of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of change End of change Start of changeXEnd of change
READPW X X X X X X X X X      
RECLAIMCA       X                
RECORDSIZE X X   X X              
REMOVEVOLUMES   X X   X X            
RESUME       X           X    
REUSE       X                
RLSENABLE       X         X      
RLSQUIESCE       X         X      
ROLLIN                     X3  
SCRATCH                       X
SHAREOPTIONS   X X   X X     X4      
STAGE   X X   X X            
STORAGECLASS       X         X   X  
STRNO                 X      
SUSPEND       X           X    
TO X     X     X X X   X  
TYPE       X                
UNINHIBIT   X X   X X            
UNIQUEKEY   X                    
UNLOCK       X1                
UPDATE               X        
UNDATEPW X X X X X X X X X      
UPGRADE X                      
WRITECHECK   X X   X X     X X    
Note:
  1. Parameters can only be specified for an integrated catalog facility catalog
  2. ALTER commands cannot be run against OAM data sets.
  3. The data set must be a generation data set in either deferred rolled-in or rolled-off status.
  4. When specified for an integrated catalog facility catalog, the data level share option will be propagated to the index level as well.
Parent topic: ALTER