[T Series]Modifying Configurations Led to a Failure to Detect LUNs

Product and version information:

• S5500T V100R001 V100R002
• S5600T V100R001 V100R002
• S6800T V100R001 V100R002
• Application server operating system: Windows 2003 R2 EE SP2 for x86
• HBA: Emulex LightPulse LPe111 (driver 5.01.20.3, HBA Firmware version: 2.50A8, and FC HBA BIOS version: 1.70a3)

The storage device and the application server were on a DAS network as shown in Figure1.
    Figure 1 DAS network

When the storage device was connected to the application server by using such a network, performing any of the following operations resulted in a failure to detect LUNs:

• Change the FC host port mode.
• Remove and reinsert optical fiber connecting the FC host port to the application server.
• Connect the application server to another FC host port on the storage device.