OA56237: TOTAL SPACE ALERT THRESHOLD % INTERVAL RESETS AFTER FALLING BELOW THE SPACE ALERT THRESHOLD % Storage Group setting.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Total Space Alert Threshold % interval resets after falling
  below the Space Alert Threshold % Storage group setting.
  
  After receiving IGD400I, as the result of reaching the Space
  Alert Threshold % setting in the Storage group, if the space
  allocated decreases below that setting, a new IGD400I should not
  be issued until the space either:
     - increases past the 10% interval amount (and at 5% intervals
       when the interval is greater than or equal to 85%)
  
                  ** or **
  
     - decreases below the interval-and-a-half amount
  
  
  For example,
   if Space Alert Threshold % storage group setting = 60%
   and space allocated goes hits 76%, an IGD400I is issued.
   The interval-and-a-half amount is 65%. So another IGD400I
   should not be issued until the space allocated goes below 65%
   or above 80%.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  *  HDZ2220 Users and above                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  *  Customer was receiving repeated                             *
  *                      messages IGD400I with the same total    *
  *                      space usage % for a storage group.      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  SUMMARY:
  Storage group alert messages IGD400I and IGD401I were issued
  multiple times, experiencing a 'ping pong affect' in which the
  storage group space usage % bounced around a threshold value.
  Repeated messages with the same storage usage % caused
  confusion for the customer.
  

Problem conclusion

• A buffer between the intervals that determine the reissuance of
  IGD400I and IGD401I is added to avoid a ping pong affect that
  leads to over issuance of the alert messages. The buffer size
  is half the interval size.
  

Temporary fix

Comments

• ×**** PE19/05/02 FIX IN ERROR. SEE APAR OA57482  FOR DESCRIPTION
  ×**** PE19/05/02 FIX IN ERROR. SEE APAR OA57482  FOR DESCRIPTION
  ×**** PE20/09/02 FIX IN ERROR. SEE APAR OA60145  FOR DESCRIPTION
  ×**** PE20/09/02 FIX IN ERROR. SEE APAR OA60145  FOR DESCRIPTION
  

APAR Information

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

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

  UA98786 UA98791

Modules/Macros

• IGDOPST1 IGDOPSS1
  

Fix information

• Fixed component name

  STORAGE MGMT SU

• Fixed component ID

  5695DF101

Applicable component levels

• R230 PSY UA98786

     UP19/04/04 P F904

• R220 PSY UA98791

     UP19/04/04 P F904

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.