Use this command to display the module file status table (MFST) information
for one or more direct access storage devices (DASDs) assigned to the basic
subsystem (BSS) or to a subsystem in a multiple database function (MDBF)
environment.
- Note:
- In some places, a DASD is also referred to as a module.
Requirements and Restrictions
None.
Format
- module
- is a 1- to 3-digit hexadecimal symbolic input module number for
real-time DASD or general data sets, or a pseudo module number for
general file DASD.
- Note:
- If you do not specify a module number, information about the lowest module
number is displayed.
- number
- is the number of DASD to be displayed from 0-18.
- Online
- displays information about the online DASD.
Additional Information
None.
Examples
The following information is displayed in the example:
- MOD
- is the symbolic or pseudo module number.
- TYPE
- is the DASD model number and one of the following indicators:
- ECKD
- Module is running in extended count key data mode.
- C/D
- Module is running in count key data mode on a caching control unit.
- C/E
- Module is running in extended count key data mode on a caching control
unit.
- RCS
- Module is running in extended count key data mode on a full function
record caching control unit.
- SDA
- is the symbolic device address.
- USE
- is the way the module is being used, where:
- GEN
- Module is a pseudo general file.
- RLT
- Module is a real-time file.
- GDS
- Module is a general data set.
- NMT
- Module is not mounted.
- DUP
- is the symbolic module number of the duplicate module, if one
exists.
- STAT
- is the module status. The possible conditions are:
- ON
- Module is online.
- OFF
- Module is offline.
- COPY
- Module is being copied from or is being copied to by
the ZMCPY function.
- VSN
- is the volume serial number.
- LOCK
- is the lock status, where:
- CF
- Module is running on a coupling facility.
- CFLF
- Module is running on a concurrency filter lock facility.
- LLF
- Module is running on a limited lock facility.
- NONE
- Module currently has no locking.
- COR
- is the correctable error count (in decimal).
- UNC
- is the uncorrectable error count (in decimal).
- PREFIX
- indicates one of the following:
- YES
- Module is running on a control unit that supports the prefixing
architecture.
- NO
- Module is running on a control unit that does not support the prefixing
architecture.
The following example displays the MFST information for six modules (00A
- 00F).
+--------------------------------------------------------------------------------+
|User: ZDMFS A 6 |
| |
|System: DMFS0004I 08.41.39 |
| MOD TYPE SDA USE DUP STAT VSN LOCK COR UNC PREFIX |
| 00A N/A GEN N/A OFF |
| 00B N/A GEN N/A OFF |
| 00C N/A GEN N/A OFF |
| 00D 3380 04E7 GEN N/A ON BP0999 NONE 00000 00000 NO |
| 00E 3380 04E8 RLT 0582 ON BP8372 LLF 00000 00000 NO |
| 00F 3380 04EC RLT N/A ON BP0456 CF 00000 00000 NO |
| DISPLAY COMPLETE |
+--------------------------------------------------------------------------------+
Related Information
None.