HP StorageWorks 300, Руководство пользователя

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Figure 55 Storage LUNs window
LUN path failover
LUN path failover allows the VLS300 to automatically reroute data traf fi c usually assigned to one
(preferred) path to another (secondary) path when the preferred path fails. Path status is shown in
Command View VLS under Storage LUN Details .
A failover is indicated in the Storage LUN Details screen by the yellow warning icon and the noti fi cation
message: Fibre Channel Path Failed Over to {#:#:#:#} . The #s stand for the node port; bus number
(always 0); the target id (an EVA port); and the LUN number on the EVA.
When one path fails, automatic failover reroutes data traf
fi c to the secondary path so the data transfer
still happens, but potentially at a slower rate. It is advised that you restore the path as soon as possible to
avoid a double path failure.
To restore the failed path:
1. Determine the cause of the failure and repair it if needed.
2. In Command View VLS, access the System tab.
3. Select Storage LUNs from the navigation tree.
4. Select View to display the storage LUN details.
5. Select Fix Primary Paths from the task bar to display the Fix Primary Paths Wizard ( Figure 56 ).
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