How to configure a storage array connecting to a Brocade switch (version 6.3.1 or 6.4) to maintain high access performance under heavy service pressure?

A storage array exchanges data with a Brocade switch (version 6.3.1 or 6.4) at an 8 Gbit/s rate. When a large file (larger than 50 GB) is being transmitted, an error occurs and interrupts the transmission and no I/O is sent to the storage array. After three hours, an alarm is generated, the related drive letter disappears, and the disk manager fails to be started.
A Brocade switch (version 6.3.1 or 6.4) supports the following modes:
? Mode 0-IDLE/IDLE
? Mode 1-ARBF/ARBF
? Mode 2-IDLE/ARBF
? Mode 3-If ARBF/ARBF fails, use IDLE/ARBF
Mode 1, Mode 2, and Mode 3 comply with the FC-FS-3 protocol. However, the 8 Gbit/s FC host ports on the storage array and the HBA of the host are in FC-AL mode by default and comply with the FC-FS-2 protocol. Therefore, an incompatibility issue arises.
You can use either of the following methods to clear the issue.
? Run the portcfgshow command to check whether the value of Fill Word is 0. If the value is not 0, run the portcfgfillword command to change the value of Fill Word to 0.
? In the ISM navigation tree, expand the Device Info node, and click the Ports node. In the right function pane, set the value of Mode to Fabric. In the POST phase of the HBA, press Ctrl+Q to go to the configuration page, and then set Connection Options of the HBA to Point-to-Point.

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