Typical environmental errors are MVS™ resources not being available. These can occur when MVS or RACF® is being restarted or can occur because of high volumes of directed commands (including automatically directed commands) or password changes that are being synchronized. This type of error can occur on either the local or remote node, and includes:

• • Insufficient main memory
  • Insufficient VSAM space
  • Remote RACF subsystem address space not active
• For APPC:
  • VTAM® not yet active
  • APPC address space not yet active
  • Retryable APPC errors
• For TCP/IP:
  • TCP/IP policy agent or resolver address spaces not yet active
  • Retryable TCP/IP errors
  • Network connectivity problems
  • Firewall issues
  • Name server problems