This invention relates to a method, system and computer program product
for reading data from a storage controller in storage area network. A
read data instruction is received from an application requesting data
from the storage controller using a primary data path. If the data on the
primary data path is not transferred in a defined time interval using the
primary data path, data is requested from the storage controller using
one or more alternative data paths. Data is received from the storage
controller on one of data paths and into a buffer. When the read
instruction has completed and that the data is in the buffer, the
application is notified. Each data path is associated with a buffer and
the data is received into a buffer associated with the path. The
application is informed which buffer holds the data and the application
accesses the data from this buffer.