Brocade Network Advisor SAN User Manual v11.1x (53-1002167-01, May 2011)

Brocade Network Advisor SAN User Manual 535

53-1002167-01

Tape LUN statistics

This feature enables you to view and clear statistics for tape LUNs. These statistics include the

number of compressed blocks, uncompressed blocks, compressed bytes and uncompressed bytes

written to a tape LUN.

The tape LUN statistics are cumulative and change as the host writes more data on tape. You can

clear the statistics to monitor compression ratio of ongoing host I/Os.

The encryption management application allows you to select tape LUN from either a tape LUN

container through the Encryption Targets dialog box, or from the Target Tape LUNs dialog box.

For operational details, see the following topics:

• “Viewing and clearing tape container statistics” on page 535

• “Viewing and clearing tape LUN statistics for specific tape LUNs” on page 536

• “Viewing and clearing statistics for tape LUNs in a container” on page 537

Viewing and clearing tape container statistics

To view or clear statistics for tape LUNs in a container, follow these steps:

1. Select Configure > Encryption from the menu task bar.

The Encryption Center dialog box displays.

2. Select a group from the Encryption Center Devices table, then select Group > Targets from the

menu task bar, or right-click a group and select Targets.

The Encryption Targets dialog box displays (Figure 244). The dialog box lists the configured

crypto target containers.

FIGURE 244 Encryption Targets dialog box

3. From the Encryption Targets table, select the container of type Tape for which to display or

clear statistics.

4. Click Statistics.

The Tape LUN Statistics dialog box displays (Figure 245). The dialog box lists statistics for all

LUNs that are members of the selected tape container.