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# Set bias location

Symmetrix Remote Data Facility (SRDF) facilitates the data replication from one storage system to another through a storage area network or Internet Protocol (IP) network.

## Prerequisites

See Roles and associated permissions to determine the user roles that can perform this task.

This operation is blocked on SRDF groups that Global Mirror uses.

## About this task

This procedure explains how to set Bias. If Bias is set as part of the Suspend operation, the side with the Bias is the side that the host can see after the Suspend operation completes.

| NOTE: Set Bias cannot be invoked for a witness protected SRDF/Metro group.

This operation can be invoked from multiple locations in the Unisphere user interface (Device group > SRDF Group, Device Group > SRDF Pairs, SG All Details > SRDF tab, Protection dashboard) . Depending on where the operation is invoked, some of the steps below may not apply.

To set bias:

## Steps

1. Select the storage system.
2. Click Protection to view the Protection dashboard and select SRDF from the Protected Storage Groups section of the summary panel.
3. Select a group, click , and select Set Bias.
   For storage groups with Celerra FBA emulation, a warning dialog is displayed indicating that the storage group may be managed externally using eNAS. To continue, click OK, otherwise click Cancel.
4. Click Advanced Options to set the advanced options. Select the advanced options and click OK.
5. Do one of the following:
   - Click Run Now to perform the operation now.
   - Expand Run Now and click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.

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