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ANS1225E Insufficient memory for file compression/expansion

Technote (troubleshooting)


A backup-archive client runs a scheduled incremental backup of a file system. The backup of the file system does not complete and the schedule fails with Return code = 12.


The client dsmsched.log shows the following message :

ANS1512E Scheduled event 'DAILY_INC' failed. Return code = 12.

Diagnosing the problem

Review the dsmsched.log of the backup. When a backup of the file system completes successfully, the following message is logged :

Successful incremental backup of '/myfs/*'

In this case, there is no message indicating that the backup was successful.
Review the client dsmerror.log file to find the following related message :

ANS1225E Insufficient memory for file compression/expansion

The messages indicate that the backup ran out of memory.

Resolving the problem

Verify the AIX ulimit settings with the "ulimit -a" command. The command output should show :

# ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) unlimited
stack(kbytes) 4194304
memory(kbytes) unlimited
coredump(blocks) unlimited
nofiles(descriptors) unlimited
threads(per process) unlimited
processes(per user) unlimited

Set the AIX ulimits to unlimited (except for stack) prior to running the backup. On machines that have constrained memory, also turn off compression for the client backup.

Document information

More support for: Tivoli Storage Manager

Software version: All Supported Versions

Operating system(s): AIX

Reference #: 1972259

Modified date: 30 October 2017