The maximum record length the local VSAM file system supports is 65,000 bytes.
If the buffer is at least 4 bytes long, and no records have been placed in the buffer, the first 4 bytes contain the length of the record that did not fit.
If the buffer is at least 4 bytes long, the first 4 bytes contain the required length of the buffer in order for the key definition information to fit
.If the buffer is at least 4 bytes long, the first 4 bytes contain the required length.
The default record buffer is outside the allowable limits.