# GGSN PSD Statistics

1. Right-click on the MWAM Card and select Configure.

2. Select category MWAM module.

3. Select a row and click the Statistics button.

4. Select the category GGSN PSD Statistics.

The following information appears:

> Write Data Record Transfer Request (cPsdClientDSWriteReq`)

> Read Data Record Transfer Request (cPsdClientDSReadReq)

> Retransmission Data Record Transfer Request (cPsdClientDSRdWrRetrans)

> State Transitions (cPsdClientDSDiskFullTrans)

### Write Data Record Transfer Request (cPsdClientDSWriteReq`)

Number of Data Record Transfer request (for write) messages sent to the PSD server. This counter is incremented when the FIFO write request is sent to the PSD server from the client.

### Read Data Record Transfer Request (cPsdClientDSReadReq)

Number of Data Record Transfer request (for read) messages sent to the PSD server. This counter is incremented when the FIFO read request message is sent to the PSD server.

### Retransmission Data Record Transfer Request (cPsdClientDSRdWrRetrans)

Number of Data Record Transfer Request (retransmission) messages sent to the PSD server. The PSD does not differentiate between a retransmission and an original request. This counter and the two previous counters (cPsdClientDSReadReq and cPsdClientDSWriteReq) can be used to tally the number of messages received by the PSD client.

This counter is incremented when FIFO read/write retransmission messages are sent to the PSD server.

### State Transitions (cPsdClientDSDiskFullTrans)

The number of state transitions made by the PSD from state 'disk available' to 'disk full'. This counter is incremented when client receives the disk full indication from the PSD server.