IC79893: SETTING CHUNK DOWN FOR MIRRORED DBSPACE ON PRIMARY SERVER WITH ONSPACES WILL NOT BE NOTICED ON THE SDS SECONDARY NODE

APAR status

• Closed as program error.

Error description

• When you have a mirrored dbspace defined you can set the primary
  or mirror chunk down with onspaces (for example to relocate the
  device). If you set the chunk of a dbspace down on the primary
  server a connected SDS server will not get an appropriate update
  of the chunk status. This can lead to assertion failures on the
  secondary when the chunk is accessed but the content is not the
  expected, because it will still get accessed by the SDS
  secondary.
  

Local fix

• To ensure no access till the down chunk is done you can shutdown
  the secondary server, if your usage scenario allows.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of Shared Disk Secondaries and mirrored chunks         *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When you have a mirrored dbspace defined, you can set the    *
  * primary or mirror chunk down with onspaces (for example to   *
  * relocate the device). If you set the chunk of a dbspace down *
  * on the primary server, a connected SDS server will not get   *
  * an appropriate update of the chunk status. This can lead to  *
  * assertion failures on the secondary when the chunk is        *
  * accessed but the content is not the expected, because it     *
  * will still get accessed by the SDS secondary.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to IDS 11.50.xC10 when available.                    *
  ****************************************************************
  

Problem conclusion

• The issue is fixed in IDS 11.50.xC10.
  

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:

Fix information

• Fixed component name

  INFORMIX SERVER

• Fixed component ID

  5725A3900

Applicable component levels

• RB50 PSY

     UP

• RB70 PSY

     UP