HP Hitachi Dynamic Link Manager Software - Manual (Page 42)

26 Chapter 2 HDLM Functions
You can specify the load balancing function from the Options window of the HDLM GUI or by
the dlnkmgr command's set operation. For details on how to use the window components,
see section 4.2.8 or 6.3. For details on the set operation, see section 7.6.
Note: Some I/O operations managed by HDLM can be distributed across all paths, and some
cannot. Thus, you should be aware that even when you use the load balancing function, I/O
operations cannot always be allocated uniformly across all paths.
When using MSCS, depending on the micro-program of the storage system, you may not be
able to use the load balancing function. For more details, see the hardware notes provided
with HDLM.