Hp XP External Storage Software Manuale Utente Scaricare il pdf (Pagina 29)

Figure 5 Alternate path mode is Multi mode

NOTE:

In Multi mode, active I/O load balancing occurs across external array ports and controllers. The

XP and EMC DMX are examples of external arrays that use Multi mode.

• Alternate path mode is Single mode

Figure 6 shows an example of when the alternate path mode is Single mode. When an error

occurs in the path used for I/Os, the I/O execution path switches to the path with the second

highest priority.

NOTE:

As you restore the path with a priority higher than the current path, the I/O execution path

automatically switches to the restored path with the highest priority.

External Storage XP user guide for the XP12000, XP10000, SVS200 29

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Hp XP External Storage Software Manuale Utente Pagina 29