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# View masking information

A storage volume is an identifiable unit of data storage. Storage groups are sets of volumes.

## About this task

This procedure explains how to view masking information.

## Steps

1. Select the storage system.
2. Select STORAGE > Storage Groups.
3. Select a storage group and click to open its Details view.
4. Click the number next to Volumes.
5. Select a volume and click to open its Details view.
6. Click the number next to Masking Info to open the volume's Masking Info view.
   The following properties display:
   - Director Port—Storage system director and port.
   - Identifier—Volume identifier name.
   - Type—Director type.
   - User Generated Name—User-generated name.
   - Logged In—Indicates if the initiator is logged into the host/target.
   - On Fabric—Indicates if the initiator is zoned in and on the fabric.
   - Port Flag Overrides—Flag indicating if any port flags are overridden by the initiator: Yes/No.
   - FCID LockDown—Flag indicating if port lockdown is in effect: Yes/No.
   - Heterogeneous Host—Whether the host is heterogeneous.
   - LUN Offset—Whether LUN offset is enabled. This feature allows you to skip over masked holes in an array of volumes.
   - Visibility—Whether the port is visible to the host.