APAR status
Closed as program error.
Error description
Under heavy load systems incremental backups do not save all the changed file(s). A subsequent backup (selective or incremental) on the ignored file(s) will result in a successful backup of the same Customer/L2 Diagnostics: The issue is caused by the Microsoft function FindNextFile(), in that, in rare cases or on a heavily loaded system, file attribute information on NTFS file systems may not be current at the time this function is called. IBM Spectrum Protect Server version Affected: Tivoli Storage Manager client v7.1 and IBM Spectrum Protect client v8.1 on Windows platform Initial Impact: Low Additional Keywords: TS001067727 incremental backup ignored file missed skipped TSM
Local fix
Add in the dsm.opt file the following option: testflag ENABLEGETFILSIZE
Problem summary
**************************************************************** * USERS AFFECTED: * * Backup-archive client versions 7.1 and 8.1 running on all * * Microsoft Windows platforms. * **************************************************************** * PROBLEM DESCRIPTION: * * See ERROR DESCRIPTION * **************************************************************** * RECOMMENDATION: * * This issue is projected to be fixed in the Backup-Archive * * Client version 8.1.8 on all Microsoft Windows platforms * * Note that this is subject to change at the discretion of * * IBM. * ****************************************************************
Problem conclusion
Sometimes the attributes returned from the Windows API FindNextFile() differ from the server data. Microsoft states that in rare cases or on a heavily loaded system, file attribute information on NTFS file systems may not be current at the time this function is called. To be assured of getting the current NTFS file system file attributes, call the GetFileInformationByHandle function. FindNextFile() cannot be replaced with GetFileAttributesEx() because of performance degradation. But the API GetFileAttributesEx() can be called under the existent testflag ENABLEGETFILSIZE
Temporary fix
Comments
APAR Information
APAR number
IT27757
Reported component name
TSM CLIENT
Reported component ID
5698ISMCL
Reported release
71W
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-01-14
Closed date
2019-01-31
Last modified date
2019-01-31
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
TSM CLIENT
Fixed component ID
5698ISMCL
Applicable component levels
[{"Line of Business":{"code":"LOB26","label":"Storage"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"71W"}]
Document Information
Modified date:
13 February 2021