HP XP7 Storage - Manual (Page 27)

Figure 2-7 Flow of I/O Data When the Load Balancing Function Is Not Used on
page 2-9 shows the flow of I/O data when the load balancing function is
not used. Figure 2-8 Flow of I/O Data When the Load Balancing Function Is
Used on page 2-10 shows the flow of I/O data when the load balancing
function is used. Both figures show examples of I/O operations being issued
for the same LU by multiple applications.
Figure 2-7 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 path (A) will cause a bottleneck, which
might cause problems with system performance.
HDLM Functions
2-9
Hitachi Dynamic Link Manager (for VMware®) User Guide