Enabling I/O statistics collection


Enabling I/O statistics collection
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By default, Veritas Volume Manager collects I/O statistics on all objects in the configuration. You only need to perform the tasks in this section if you disabled I/O statistics collection.

To display whether I/O statistics are enabled

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 enable I/O statistics collection

Enter the following command:
```
# vxtune vol_stats_enable 1
```

To enable DMP I/O statistics collection

Enter the following command:
```
# vxdmpadm iostat start
```
See the vxdmpadm(1M) manual page.

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Disabling I/O statistics collection	Home	Appendix A. Using Veritas Volume Manager commands