IBM Directory Maintenance for z/VM (DirMaint)
| 08-13-2013: updated for z/VM DirMaint FL630
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IBM Directory Maintenance (DirMaint) for z/VM is a CMS application
that helps manage an installation's VM directory.
Directory statements can be added, deleted, or altered
using the DirMaint directory statement-like commands.
DirMaint provides automated validation and extent
allocation routines to reduce the chance of operator error.
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With z/VM V6, DirMaint is a priced, optional feature and is
automatically shipped on the z/VM V6 base product media:
See the announcement letter for further details,
The priced, optional feature of the IBM Directory Maintenance
Facility (DirMaint) has released a new function level (FL630) in
z/VM V6.3. DirMaint FL630 includes all service applied since
FL620 plus support is added for the z/VM upgrade installation
procedure exit (UPGDVHXT EXEC). This exit provides the
interface between the z/VM upgrade installation procedure and
DirMaint so that DirMaint can be used for all of the directory
updates associated with the upgrade installation. In order for
this exit to work successfully, some DirMaint configuration is
necessary. If you plan to use the z/VM upgrade installation
procedure with DirMaint, please see Appendix C. Preparing for
the z/VM Upgrade Installation Procedure here.
Support was added in DirMaint FL620 (and is available in FL630)
for z/VM Single System Image Clusters. A z/VM single system
image (SSI) cluster is a multisystem environment in which the
z/VM member systems can be managed as a single resource pool and
running virtual servers (guests) can be relocated from one
member to another. For more information about the SSI
environment and setting up SSI clusters, see
z/VM: CP Planning and Administration.
In DirMaint FL630, support is added so that in an SSI cluster,
the DIRMAINT server maps extents for system attached DASD
volumes on all members of the SSI cluster. In previous releases
this is only done for the member on which the DIRMAINT server is
running. In DirMaint FL630, the DIRMAINT server additionally
issues CP QUERY ALLOC MAP commands via the CP AT command on all
systems for which a satellite server is defined.
Note: To use the functions that define and maintain an SSI
cluster, the IBM z/VM Single System Image Feature must be
licensed and enabled.
Online Support for z/VM, where you can:
DirMaint service can be ordered on-line at
with ordering information tips available
Instructions for testing service.
End of Service dates
Hints and Tips
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change or withdrawal without notice. Any reliance on this Statement of
Direction is at the relying party's sole risk and will not create any liability
or obligation for IBM.