Enterprise Volume Manager (Multi-OS) Version 2.0D Network Administration Guide

9–4 Enterprise Volume Manager (Multi-OS) Network Administration Guide
EVM Jobs and Job Management
Normalize Volume Operation
The normalize operation checks the status of the clone copy process and waits until
normalization is complete on all units in the volume before starting the next step.
Suspend Operation
The suspend operation invokes an application-specific agent or utility on an EVM host
agent computer, which places an application (typically a database) in the appropriate
state for volume replication. The methods invoked vary, depending on the application.
Refer to the appropriate application-specific EVM white paper for details.
In the Windows Clone Example on page 9–2, the batch file named
freeze_database.bat executes on the “dbserver” host using the WAIT parameter.
In the UNIX Clone Example on page 9–3, the script named freeze_db.sh executes on
the “dbserver” host using the WAIT parameter.
Split Unit Operation
The split operation separates the normalized clone disk and creates a new independent
BCV.
In the Windows Clone Example on page 9–2, three clones are split from the source
units to create three BCVs. The $<name> variable allows EVM to automatically
choose the unit number for the BCV.
Split Volume Operation
In the UNIX Clone Example on page 9–3, the split operation separates the normalized
clone disk and creates a new independent BCV. The $<name> variable allows EVM
to automatically choose the volume number for the BCV.
Resume Operation
The resume operation is the inverse of the suspend operation. The resume operation
returns the application on the EVM host agent computer to the normal mode of
operation.
Mount Unit Operation
After creating the BCVs and restoring the application on the EVM host agent
computer to the normal mode of operation, the mount unit operation mounts the BCVs
on an EVM host agent computer.