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Immediate_Report set to 0 on EVA devices

Jim Viera
Frequent Advisor

Immediate_Report set to 0 on EVA devices

I recently noticed that the immediate_report parameter is set to 0 on my EVA devices on HPUX 11.0 systems.

Kernel parameter, default_disk_ir, is set to the default of 0 on all of my systems.

My VA7400 luns (on the same systems) have the immediate_report parameter set to 1??? I haven't changed the default with the scsictl command???? Is the device driver setting this parameter automatically????

Anyway, it seems that I do want write cache enabled for performance reasons on my disk arrays.

Is there a difference between pvlinks and Secure Path relating to enabling the write cache for the luns?