Create Global Mirror session — Define properties

Introduction

This page allows you to define the properties of your Global Mirror session, including the consistency group interval time, maximum coordination interval, and the maximum amount of time that the writes are inhibited to the remote side.

Menu path

Fields

Enter session number

The session number consists of two hexadecimal characters ranging from 01 - FF (1-255 in decimal). This number is unique across the enterprise and uniquely identifies the session. It identifies volumes that are included in the Global Mirror session.

Get available session numbers

Available session numbers for the volumes that are associated with the Global Mirror session are displayed when you click the button.

Select master LSS

The master LSSs that are available for selection depend on which storage complex you specified for Select storage complex for master LSS. Navigate through the following levels to select the master LSS:

Storage complex

The list of storage complexes that are available for selection. This is the first filter that displays in the table.

Storage unit

The nicknames of the storage units that are available for selection. The storage unit (from the selected storage complex) is the second filter that displays in the table.

LSS

The LSS number that is associated with the master storage unit. The LSS (from the selected storage unit) is the third filter that displays in the table.

Consistency group interval time (seconds)

Indicates how long you must wait between the formation of consistency groups. If the value is set to zero, the consistency group will be formed continuously. The default value is 0. The maximum value is 65535 seconds. This field is optional.

Maximum coordination interval (milliseconds)

Indicates the maximum time that the primary host I/O is paused to begin forming a consistency group. The default value is 50. The maximum value is 65535 milliseconds. This field is optional.

Maximum time writes inhibited to remote site (seconds)

Indicates the maximum amount of time that writes are inhibited to the remote site before the current consistency group stops. The default value is 30 seconds. This field is optional.

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