10.2.0.5特有的时区标识DFT

下面是一段alert日志，在记录时间时多了一个DFT,使我困惑了好一阵子，现在才知道，这是oracle10.2.0.5特加的一个时区标志
Wed Aug 25 07:21:00 DFT 2010
ARC1: Becoming the 'no FAL' ARCH
ARC1: Becoming the 'no SRL' ARCH
Wed Aug 25 07:21:00 DFT 2010
ARC0: Becoming the heartbeat ARCH
Wed Aug 25 07:21:00 DFT 2010
Starting background process CTWR
CTWR started with pid=18, OS id=22900912
Block change tracking service is active.
Wed Aug 25 07:21:01 DFT 2010
SMON: enabling cache recovery
Wed Aug 25 07:21:01 DFT 2010
Successfully onlined Undo Tablespace 1.
Wed Aug 25 07:21:01 DFT 2010
SMON: enabling tx recovery