Troubleshooting
Problem
When attempting to startup HSM with RLS CDS, the started task fails with the below error messages.
IGW452I NO DFSMS CACHE STRUCTURES
ARE AVAILABLE TO STORAGE CLASS structname
THIS STORAGE CLASS MAPS TO CACHE SET NAMED: structname
IEC161I 249-0537,HSM,sss,MIGCAT,,,cdsname,cdsname.DATA,
IEC161I catalog
ARC0945I OPEN OF DDNAME=MIGCAT FAILED, VSAM REASON
ARC0945I (CONT.) CODE IS X'C9'
ARC0200I TRAP IN MODULE ARCCOPEN, CODE=0008, FATAL
ARC0200I (CONT.) ONCE ADDED
ARC0900I DFSMSHSM ERROR CODE 0008 IN MODULE ARCCOPEN
ARC0900I (CONT.) TYPE FATALCause
The IEC161 RC249 and ARC0945I reason code X'C9' indicates that VSAM RLS processing was requested but no eligible coupling facility cache structure is available. The VSAM RLS Sphere is not currently assigned to a CF cache structure and no CF cache is available from this system.
Diagnosing The Problem
The output from the commands D XCF,STR,STRNM=structname and D SMS,CFCACHE(structname) will show if the structures are defined and enabled.
Check for the SYSLOG around the time of the HSM startup for IXL013I or IXL015I error messages to see if there are any issues when the IXLCONN service is called for the structures of interest. The message IXL014I will surface if the IXLCONN service call is successful.
Resolving The Problem
Resolve the errors per the IXL013I or IXL015I message(s) in the SYSLOG. Once resolved, restart the SMSVSAM address space to refresh its cache structure connections and try the HSM startup again.
For further assistance, please contact IBM Support.
Related Information
Document Location
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Document Information
Modified date:
12 May 2026
UID
ibm17271316