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Informix - Problembeschreibung

Problem IT03156 Status: Geschlossen

POTENTIAL PAGE ZERO CORRUPTION BY ONMODE -C BLOCK

Produkt:
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10
Problembeschreibung:
It has been observed that after an 'onmode -c block' the free 
counter of root chunk's page zero is zero.  So the page header 
no longer is intact and any future flushing of this page to 
disk, e.g. for an increased "Maximum server connections" value, 
would cause the root chunk and the server to go down. 
 
You can determine this corruption in an 'oncheck -pP 1 0' output 
whose 'frcnt' value is zero. 
 
This can go unnoticed for a long while on a primary or standard 
server, but a level 0 restore or a backup of such corrupted 
system, e.g. for setting up a secondary server, would cause 
assertions soon after it finished.
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All users.                                                   * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Update to IDS-12.10.xC5                                      * 
****************************************************************
Local-Fix:
Lösung
Problem Fixed In IDS-12.10.xC5
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
14.07.2014
16.10.2015
16.10.2015
Problem behoben ab folgender Versionen (IBM BugInfos)
Problem behoben lt. FixList in der Version
12.10.xC4.W1 FixList
12.10.xC5 FixList
12.10.xC5.W1 FixList