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DISK_SYSPARM_IOTRACKS_1

Description

Setting the sysparm IOTRACKS to a value less than the number of tracks in a cylinder causes Backup, Archive, and Restore jobs to issue more read/write requests to the DASD device. This causes the job to run slower and use more processing time and CPU resources. This exception will be cleared when this check runs again after the job causing the exception is changed and runs, or after the job statistics are older than the number of days specified in the AGE parameter for this health check.

Best Practice

Set the sysparm IOTRACKS to 30 to get the best performance on disk I/O activity during a Backup or Archive job. Getting the best performance on DASD I/O results in reduced processing time for your required Backup and Archive jobs.

Parameters Accepted

AGE(7),MIN(15)

Debug Support

Yes

Verbose Support

Yes

Reference

For more information, see the Systems Guide.

Messages

ADSH0031E Sysparm IOTRACKS is set to less than the number of tracks in a cylinder.