Dumping a shared temporary storage list structure

You can use the MVS™ DUMP command to obtain a dump of the coupling facility list structure for the shared temporary storage pool. For example, enter the following command at the console:

DUMP COMM=(sharedts_poolname) 

In response to the DUMP command, the system prompts you with a reply number for the dump options you want to specify. When prompted for dump parameters in response to the DUMP COMM command, enter the reply:

REPLY nn,STRLIST=(STRNAME=DFHXQLS_poolname,ACCESSTIME=NOLIMIT,
         (LISTNUM=ALL,ADJUNCT=DIRECTIO,ENTRYDATA=UNSERIALIZE)),END 

Using abbreviations for the keywords, this reply can be entered as:

R nn,STL=(STRNAME=DFHXQLS_poolname,ACC=NOLIM,
     (LNUM=ALL,ADJ=DIO,EDATA=UNSER)),END     

The parameter ACCESSTIME=NOLIMIT allows XES to override server access time limits, to obtain serialization to take the dump. Without this parameter, no dump is taken if any server is active.

The parameters ADJUNCT=DIRECTIO and ENTRYDATA=UNSERIALIZE notify XES not to keep the serialization while dumping adjunct areas and entry data. If servers are currently active but it is considered important to obtain a serialized dump, to show the structure at a moment in time, replace these parameters with ADJUNCT=CAPTURE and ENTRYDATA=SERIALIZE. Note that this will lock out server access to the structure until the dump is complete.

For more information about the MVS DUMP command, see OS/390 MVS System Commands.

Notes:
  1. In order to obtain a dump of a coupling facility list structure, you must specify a value for the DUMPSPACE parameter in the CFRM policy for the coupling facility. The recommended value is 5% of the space in the coupling facility. For more information, see OS/390 MVS Setting Up a Sysplex.
  2. If system-managed structure duplexing is available, then both instances of the structure will be dumped.

Related Tasks
Formatting a shared temporary storage pool dump
Dumping a CFDT list structure
Dumping a named counter list structure
Formatting a coupling facility data table pool dump
Formatting a named counter pool dump
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