EMC 300-000-978 REV A03 manual Before Removing PowerPath

4

Removing PowerPath

Before Removing PowerPath

Before you remove PowerPath from the host:

❑Check the Powerlink website (http://powerlink.emc.com) for the most current information. We update the PowerPath release notes periodically and post them on the Powerlink website.

❑Stop any application and shut down any database that is using emcpower devices or a PowerPath Volume Manager volume. Unmount any file system mounted on a PowerPath Volume Manager volume.

❑If you are removing PowerPath from the host entirely (that is, you are not planning to reinstall PowerPath), remove all PowerPath Volume Manager volumes and volume groups allocated on the host:

Run the powervadm list command to determine whether any volumes and volume groups are allocated on the host. If volumes and volume groups are allocated, destroy them. Refer to Destroying a Volume and Destroying a Volume Group in the PowerPath for UNIX Volume Manager User’s Guide.

❑If you have a database partition, discontinue use of PowerPath devices as follows:

1.Stop the database manager.

2.Unmount PowerPath devices.

3.Edit the appropriate database configuration files so they no longer refer to emcpower devices.

❑If your PowerPath installation uses a storage system device as the boot device, remove PowerPath control over the boot device. Refer to Removing PowerPath Control Over a Boot Device on

page 3-11.

4-2 PowerPath for UNIX Installation and Administration Guide