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VSM - z/OS Host Messages IOS000I / IOS071I / SLS6698I (Doc ID 1016507.1)

Last updated on JULY 11, 2022

Applies to:

Sun StorageTek VSM System - Version 4 to 5C [Release 4.0 to 5.0]
StorageTek Virtual Storage Manager System 6 (VSM6) - Version All Versions to All Versions [Release All Releases]
Sun StorageTek VSM5 System - Version All Versions and later
IBM z/OS on System z

Symptoms

The following z/OS host informational messages may be issued during periods of high VTD (virtual tape drive) activity on the VTSS or other circumstances:

IOS071I xxxx,xx,SLS0, MISSING CHANNEL AND DEVICE END
IOS000I xxxx,**,SIM,**,**06,,**,S3=GTA,SLS0
IOS071I xxxx,**,xxxxxxxx, START PENDING
SLS6698I ECAM I/O error on VTD xxxx

Note:  SLS messages are issued by VTCS software.

Changes

Verify the MIH, missing interrupt handler, is set to 20:00 minutes or more.  Issue this host system command:

D IOS MIH, DEV=(xxxx)
-where xxxx is the tape drive address.


If this MIH setting is 20:00 or more,  then investigate further.

Cause

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