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Martin Hanspeter
Occasional Advisor

HP P4000 high queue depth

Hello,

 

i`ve a 2 Node Cluster running on SAN/IQ 10 with 3 ESXi 5 Hosts. There are running ca. 20 VMs.

 

Once or twice per day it occurs that the queue dept in the Performance Monitor goes over 500 and all VMs remains blocked for ca. 30 seconds. After this 30 seconds the system will run normaly and the queue depht shows ca. 10-15.

 

There is no backup or some other high I/O operation running during this time.

 

Thank you

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