IIUB018E VSAM `vsam` ERROR FOR DBD `dbdname`. RC = `rc`. FDBK = `fdbk`

Explanation
 A VSAM vsam error has
been detected while loading the index database dbdname.

System action
 Processing stops.

User response
 Use the return code (RC) and VSAM feedback code
(FDBK) to determine the cause of the problem. Contact IBM® for support, if necessary.