Displaying auxiliary storage information

Use the DISPLAY ASM command to identify the page data sets and storage-class memory (SCM) blocks that the system is currently using. You can request this information for each data set of a given type, or for a specific data set.

If you request information by data set type, the following information is displayed in message IEE200I for each data set of the specified type that the system is currently using:
  • Type of data set
  • Percent full
  • Status
  • Device number
  • Data set name
If you request information about the PLPA or common data set, or about a specific page data set, you receive all the preceding information, plus:
  • Volume serial number
  • Device type
  • Data set size (in slots)
  • Number of slots that are currently in use
  • Number of slots that are currently available
  • Number of permanent I/O errors that have occurred on the specified data set
D ASM 
 
D ASM[,PLPA              ][,L={a|name}name-a}]
      |,COMMON
      |,LOCAL
      |,SCM
      |,ALL
      |,PAGE=[dsname|ALL]
      |,PAGEDEL
ASM
The system is to display information about the page data sets and storage-class memory (SCM) the system is currently using. If you specify DISPLAY ASM with no operands, the system displays information about all page data sets and SCM that it is currently using and the status of the PAGEDEL command.
PLPA
Requests information about the PLPA page data set.
COMMON
Requests information about the common page data set.
LOCAL
Requests information about all local page data sets.
SCM
Requests information about storage-class memory (SCM) that is used for paging.
ALL
Requests information about all page data sets, storage-class memory (SCM) and the status of the PAGEDEL command.
PAGE
Requests information about page data sets.
ALL
Requests information about all page data sets.
dsname
Requests information about the page data set named dsname.
PAGEDEL
Requests information about the PAGEDEL command, active or inactive.
L=a, name, or name-a
Specifies the display area (a), console name (name), or both (name-a) where the display is to appear.

If you omit this operand, the display is presented in the first available display area or the message area of the console through which you enter the command.

Example 1:

To display summary information about all page data sets, storage-class memory (SCM) and the PAGEDEL command status, enter: 
DISPLAY ASM,ALL or D ASM
Output is similar to:
TYPE     FULL STAT   DEV  DATASET NAME
PLPA     100% FULL  02E6  SYS1.PLPA.PAGCOM
COMMON    71%   OK  02E6  SYS1.COMMON.PAGCOM
LOCAL      1%   OK  098E  SYS1.LOCAL.PAGEP2
LOCAL      1%   OK  0981  SYS1.COMMON
LOCAL      0%   OK  0484  PAGE2
SCM        5%   OK  N/A   N/A 
PAGEDEL COMMAND IS NOT ACTIVE

Example 2:

To display detailed information about storage-class memory (SCM), enter: 
D ASM,SCM
Output is similar to:
STATUS  FULL             SIZE            USED        IN-ERROR
IN-USE  xxx%   xx,xxx,xxx,xxx  xx,xxx,xxx,xxx  xx,xxx,xxx,xxx
Note: If the D ASM,SCM command is issued and storage-class memory (SCM) is not being used for paging, message IEE207I is issued with a status value of NOT-USED, even if SCM is defined to the partition.
To display detailed information about the PLPA data set, enter: 
D ASM,PLPA

Example 3:

To display only paging data set information, enter: 
D ASM,PAGE or D ASM,PAGE=ALL
D ASM,PAGE output is similar to:
TYPE     FULL STAT   DEV  DATASET NAME          
PLPA     100% FULL  02E6  SYS1.PLPA.PAGCOM      
COMMON    69%   OK  02E6  SYS1.COMMON.PAGCOM    
LOCAL      0%   OK  098E  SYS1.LOCAL.PAGEP2     
LOCAL      0%   OK  0981  SYS1.COMMON           
LOCAL      0%   OK  0484  PAGE2
D ASM,PAGE=ALL output is similar to:
TYPE     FULL STAT   DEV  DATASET NAME          
PLPA     100% FULL  02E6  SYS1.PLPA.PAGCOM      
COMMON    69%   OK  02E6  SYS1.COMMON.PAGCOM    
LOCAL      0%   OK  098E  SYS1.LOCAL.PAGEP2     
LOCAL      0%   OK  0981  SYS1.COMMON       
LOCAL      0%   OK  0484  PAGE2
Parent topic: DISPLAY command