PH71218: LCP PROFILE DOES NOT HONOR 10-MINUTE SGC INTERVAL DUE TO MINIMUM INTERVAL CONFLICT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Was identified a potential issue when configuring an LCP profile
  with an SGC interval set to MINUTE(10). The system does not
  consistently honor the configured 10-minute interval due to a
  conflict with the minimum allowed time between captures, which
  is also defined as MINUTE(10).
  
  As a result, some SGC executions are silently skipped because
  the required minimum time between captures has not yet elapsed.
  This behavior prevents SGCs from being taken at the expected
  10-minute frequency, leading to gaps in data collection.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: GDPS Metro and GDPS Global - GM users        *
  *                 exploiting LCP Manager                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: LCP scheduled Safeguarded Captures may  *
  *                      be skipped when the Minimum Interval    *
  *                      and Capture Interval management profile *
  *                      fields are set to the same value.       *
  ****************************************************************
  When the Minimum Interval and Capture Interval Safeguarded Copy
  management profile fields are set to the same value, slight
  timing changes may cause captures to be skipped due to the
  Minimum Interval not having elapsed.
  
  The Minimum Interval should be set to a lower value than the
  Capture Interval, but when the Capture Interval is set to
  MINUTE(10), it is impossible to set the Minimum Interval lower
  since both values have MINUTE(10) as their lowest possible
  value.
  

Problem conclusion

• This PTF corrects the reported problems by allowing the Minimum
  Interval of Safeguarded Copy and FlashCopy management profiles
  to be set as low as MINUTE(5).
  
  DOCUMENTATION CHANGES
  The GDPS Logical Corruption Protection Manager Installation and
  Customization Guide (ZG24-6763) and Stand-alone LCP Manager
  Installation and Customization Guide (ZG24-6765) are updated
  with the new Minimum Interval value range for FlashCopy and
  Safeguarded Copy management profiles.
  
   Minimum Interval
   The minimum amount of time that must elapse before a new
   capture is permitted. The value specified must be equal or
   less than the retention period. The minimum capture interval
   can be specified as:
    MINUTE(n) Where n is a value between 5 and 9999
    HOUR(n) Where n is a value between 1 and 999
    DAY(n) Where n is a value between 1 and 999
  
  KEYWORDS: GDPSLCPMGR/K
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UO08157 UO08158 UO08159 UO08160 UO08161 UO08162

Modules/Macros

• GEOGUIUS VPCEMP00 VPCPHL07
  

Fix information

• Fixed component name

  GDPS

• Fixed component ID

  694235B00

Applicable component levels

• R470 PSY UO08161

     UP26/06/09 I 1000

• R47B PSY UO08162

     UP26/06/09 I 1000

• R480 PSY UO08159

     UP26/06/09 I 1000

• R48B PSY UO08160

     UP26/06/09 I 1000

• R490 PSY UO08157

     UP26/06/09 I 1000

• R49B PSY UO08158

     UP26/06/09 I 1000

Fix is available

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