content_image/976811.jpg
## 7.3.3 General Pane 

General Pane is shown in Figure 7-22. 

<img src='content_image/976811.jpg'>

This pane gives the following options: 

GLYPH<SM590000> Format volume:  Controls whether the volume should be formatted before it is made available. Defaults to Enabled. 

GLYPH<SM590000> Cache mode:  Controls volume caching. Defaults to Enabled. Other available options are Read-only and Disabled. 

GLYPH<SM590000> OpenVMS UDID:  Each OpenVMS Fibre Channel-attached volume requires a user-defined identifier or unit device identifier (UDID). A UDID is a nonnegative integer that is used in the creation of the OpenVMS device name. 

## 7.4 Stretched volumes 

If the IBM Spectrum Virtualize system is set up in stretched topology, the Create Volumes menu shows the Stretched option. Click Stretched  to create a stretched volume and define its attributes as shown in Figure 7-23 on page 292. 

Note:  The IBM Knowledge Center page on Stretched topology is available at https://ibm.biz/BdYkQv . 

