Disabling I/O statistics collection
By default, Veritas Volume Manager collects I/O statistics on all objects in the configuration. This helps you tune different parameters that depend upon the environment and workload.
After the tuning is done, you may choose to disable I/O statistics collection because it improves I/O throughput.
To display whether I/O statistics are enabled
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Enter the following command:
# vxtune vol_stats enable
If the system displays 1, I/O statistics collection is enabled. If it displays 0, I/O statistics collection is disabled.
To disable I/O statistics collection persistently
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Enter the following command:
# smit vxvm
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From the menu, select Change / Show VxVM Tunables.
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Set Enable VM I/O stat collection to 0 and press
The values of this tunable are updated without have to reboot the system.
To disable I/O statistics collection until the next system reboot
If you are concerned about high I/O throughput, you may also choose to disable DMP I/O statistics collection.
To disable DMP I/O statistics collection