Monitoring using mmperfmon

You can use mmperfmon to monitor AFM to cloud object storage.

Complete the following steps to enable Performance Monitoring tool and query data.

Note: Ensure that monitoring is initialized, performance monitoring is enabled, and other sensors are collecting data.

Configure the gateway nodes as performance monitoring nodes.
```
# mmcrnodeclass afmGateways -N gw1,gw2
```
Set the -perfmon designation for the gateway nodes.
```
# mmchnode –perfmon -N afmGateways
```
Enable the monitoring tool on the gateway nodes to set the collection periods to 10 or higher.
```
# mmperfmon config update GPFSAFM.period=10 GPFSAFMFS.period=10 GPFSAFMFSET.period=10
```

Restrict the gateway nodes to collect AFM data.

# mmperfmon config update GPFSAFM.restrict=afmGateways GPFSAFMFS.restrict=afmGateways GPFSAFMFSET.restrict=afmGateways

Run the query to display time series data.

# mmperfmon query gpfs_afm_fset_bytes_written --bucket-size 60 --number-buckets 1 -N gw1

A sample output is as follows:

Legend: 1: gw1|GPFSAFMFSET|gpfs0|independentwriter|gpfs_afm_fset_bytes_written Row Timestamp gpfs_afm_fset_bytes_written 1 2017-03-10-13:28:00 133546