The support within DB2 Connect for loosely coupled transactions is intended to be used by user who implement XA distributed applications that access DB2 for OS/390 Version 6 or later. This support allows different branches of the same global transaction to share lock space on DB2 for OS/390. This feature reduces the window where one branch of a distributed transaction encounters lock timeout or deadlock as a result of another branch within the same global transaction. DB2 for OS/390 Version 6 shares the lock space in this situation provided DB2 Connect sends the XID on each connection serving different branches of the same global transaction.