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OceanStor alarm that Volume Not On Preferred Path

Publication Date:  2012-10-16 Views:  87 Downloads:  0
Issue Description
When OceanStor create volume, it would select Preferred controller ownship(SlotA、SlotB,as in figure 1),select slot A and there would be alarm: Volume Not On Preferred Path, change controller of volume into slot B and then there would be same alarm (as in figure 2)
Alarm Information
Volume Not On Preferred Path
Handling Process
To cancel this alarm, the handing process is like:
1. Create volume and connect volume to board
2. This alarm occur
3. Delete volume and recreate and connect
4. Before alarm occur (about 7 seconds), change volume to another controller

Root Cause
The alarm would not affect use of storage according to consultation 
Operate according to instructor of installing storage, before storage alarm is removed, do not do any important operation like create library. If the alarm is severe, it may be needed to partition again. After the outcome of alarm is clear, do operation with storage space.