A fix is available
APAR status
Closed as program error.
Error description
************************************************************** * USERS AFFECTED: * Systems running the AIX 7200-02 Technology Level * with bos.mp64 below 7.2.2.18 level. ************************************************************** * ERROR DESCRIPTION: * If you use the new defragfs -f option on AIX 7.2 TL2, it may * result in undetected data corruption due to overwriting * file blocks. * * This is only a problem with the -f option introduced in * AIX 7.2 TL2. ************************************************************** * RECOMMENDATION: * Install APAR IJ06486. * Prior to fix availability, an interim fix is available from * either * ftp://aix.software.ibm.com/aix/ifixes/ij06486/ * https://aix.software.ibm.com/aix/ifixes/ij06486/ * The ifix can be installed using Live Update (LU). * If LU is not used, installation of the ifix requires a * reboot. **************************************************************
Local fix
Problem summary
cksum of files may change after running defragfs -f due to modified file blocks
Problem conclusion
Modified buffer pages properly flushed from cache during defrag to avoid overwriting of existing blocks
Temporary fix
********* * HIPER * *********
Comments
7200-02 - use AIX APAR IJ06486
APAR Information
APAR number
IJ06486
Reported component name
AIX V7.2
Reported component ID
5765CD200
Reported release
720
Status
CLOSED PER
PE
YesPE
HIPER
YesHIPER
Submitted date
2018-05-17
Closed date
2018-05-17
Last modified date
2018-09-21
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
AIX V7.2
Fixed component ID
5765CD200
Applicable component levels
R720 PSY U877760
UP18/08/13 I 1000
PTF to Fileset Mapping
U877760 bos.mp64 7.2.2.18
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
21 September 2018