EMC DL3D 1500, Administrator'S Manual

Page: 143 / 238

Configuring and implementing data replication 143
Managing Data Services
3. Set up the source DL3D appliance. Specify the target DL3D
system on each source DL3D in your environment. There is a
single target DL3D per source. See
“Setting up the source DL3D
appliance” on page 146 .
4. Enable and run replication. See “Replicating to a target system”
on page 149 .
5. View the replication status. See “Viewing replication status” on
page 155 .
6. Perform source role actions. See “Performing source role actions”
on page 158 .
7. Perform target role actions. See “Performing target role actions”
on page 160
Prerequisites for replication
The requirements for replication include:
◆
All source virtual tape libraries or NAS shares on a source system
must replicate to the same target system.
◆
Only virtual tape libraries or NAS shares with de-duplication
enabled can be replicated.
◆
For namespace replication, only virtual tape libraries or NAS
shares with replication enabled can be replicated.
◆
For cartridge-based replication, only virtual tape libraries with
cartridge-based replication enabled can replicate tape cartridges.
◆
For directory/file-based replication, only NAS shares with
directory/file-based replication enabled can replicate individual
files/directories.
◆
For cartridge-based replication or directory/file-based
replication, virtual tape libraries or NAS shares with identical
Sync ID values on the source and target DL3D systems support
replication to each other.
Configuring namespace replication for the first time
For a new DL3D installation, or immediately after you have created a
new share/virtual tape library, you must replicate the namespace
(using the on-demand Replicate Now function) for each share
/virtual tape library as soon as it is created and enabled for
replication before any data is written to it.