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Improving z/OS Application Availability by Managing Planned Outages by Yvonne Zemotel, Marna Walle, Dave Viguers, Michael Stephen, Maida Snapper, Judy Ruby-Brown, John Papp, Chuck Laurent, Richard Gunjal, Fernando Ferreira, Justin Deane, Andy Clifton, Frank Kyne

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z/OS enhancements: GRS
This chapter provides information about enhancements in z/OS Global Resource Serialization (GRS) since z/OS 1.8 that help you avoid or postpone a planned outage of z/OS or one of the components of z/OS.
This chapter includes the following sections:
5.1 Moving GRS contention notification system role
System commands have been enhanced to help with moving the GRS contention notification role.

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