Configuring IBM LSPACE

OMEGAMON® for Storage uses the IBM LSPACE service to collect information about DASD space and fragmentation.

About this task

The LSPACE service places an exclusive enqueue on the volume VTOC while running. To avoid the possibility of leaving this enqueue on the VTOC during VTOC processing errors, the agent forces a U0001 abend of the subtask if it takes more than 15 seconds to complete. Typically, this operation completes in less than a second, however during high volume activity, such as backups or disk copy operations, this limit can exceed without any real problem. This abend is generated for forcing LSPACE to release the enqueue. It does not indicate an actual problem and therefore, the dump it generates is not needed.

Procedure

To avoid capturing the dumps and incurring the CPU overhead required to take them, place the following SLIP trap in the IEASLPxx member of SYS1.PARMLIB

SLIP SET, C=U0001,JOBNAME=tems_taskname,A=NOSVCD,
                    ID=xxxx,END

The IBM LSPACE service bypasses capturing the dump. The only indication of the abend reflects in the EREP reports.