550: Allocation of dsname failed while executing cmd command.

Explanation

The server attempted to allocate to a new data set to store data. The dynamic allocation was unsuccessful. cmd is STOR, STOU, or APPE.

System action

The command is rejected. FTP continues.

User response

None.

System programmer response

Examine the trace and look for trace messages with the tag seq_create_file. These trace messages provide the reason codes for the dynamic allocation error.