Virtual TapeServer 8.4 Configuration Guide

Enabling and Configuring Role Swapping | 67
3. Configure Server A to export data to Server B:
a. Enable Data Replication licensing using the VTS web interface as described in "Enabling
Licensed Features" on page 21.
b. Configure the rep_ parameters in the configuration file as described in "Configuring
settings for remote export jobs" on page 72.
c. Export virtual tapes to Server B by creating and running remote export jobs. This is
described in "Replicating a virtual tape using a remote export job" on page 73.
If virtual tapes are exported to Server B after the Server A has been in production, new
remote export jobs may take a long time to complete.
4. Configure Server B in preparation of role swapping:
a. Make sure ports on Server B are set to virtual for ports to be connected to host
servers. (Host servers will use these ports to write data to VTLs and VTDs.) See
"Configuring Ports" on page 25 for more information.
b. Connect the host servers to Server B. Refer to the Quick Start Guide for cabling
instructions.
c. Configure VTLs and VTDs to match those on Server A. See "Creating and Managing VTLs
and VTDs" on page 27 for more information.
d. Remove virtual tapes from the newly created VTLs, if VTLs were created. These virtual
tapes are created automatically but cannot be used to store data that is exported by
the remote export jobs. Refer to the online help for instructions.
e. Recreate and schedule all of Server A’s jobs on Server B, including the remote export
jobs (whose target should be Server A). Be sure to disable these jobs; they should not
run until after the roles of the servers have been swapped. Refer to the online help for
instructions.
f. If Data Encryption is licensed, it is recommended that you configure Server B to use
Server A as its key generator.
5. To swap roles:
a. If Server A is available:
l Stop all backup operations to Server A.
l Disable all jobs on Server A, including the remote export jobs that export data to
Server B. See the “Modifying a job” help topic in the online help.
l Remove virtual tapes from all VTLs on Server A, if VTLs are used. See the
“Removing a virtual tape from a VTL” help topic for details.
b. Load virtual tapes that were exported from Server A into VTLs on Server B, if VTLs are
used. These virtual tapes are needed by the host servers, to back up data on Server B.
See the “Adding a virtual tape to a VTL” help topic for details.