HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 33)

Figure 2-5 Flow of I/O Data When the Load Balancing Function Is Not
Used
When the load balancing function is not used, I/O operations converge onto a
single path (A). The load on that one physical path (A) will cause a
bottleneck, which might cause problems with system performance.
HDLM Functions
2-11
Hitachi Dynamic Link Manager (for Solaris) User Guide