HP 3PAR VSS Provider 2.2.2 for Microsoft Windows User Guide (QL226-97305, December 2013)

4 HP 3PAR Remote Copy Software and HP 3PAR VSS
Provider
Purpose of Remote Copy Software
HP 3PAR Remote Copy Software can be used to safeguard against disasters that may occur at
one location by keeping a copy of valuable data at another location. For example, if there was
a fire or earthquake at a particular location, all of the data stored there could be lost unless a
backup copy is maintained somewhere where the data can be recovered. Remote Copy Software,
(supported through the system), can prevent this kind of disastrous scenario. When using Remote
Copy Software, two systems are used: a primary that is used for production, and a secondary that
is used for backup purposes. When disaster strikes in one location, there is always a backup at
the secondary site. See the HP 3PAR Remote Copy Software User’s Guide for complete information
about Remote Copy Software.
Setting Up Remote Copy
To use the Remote Copy Software, you must first install and configure a Remote Copy environment.
NOTE: HP 3PAR Remote Copy Software requires a Remote Copy Software license. Contact your
local service provider for details.
NOTE: See the HP 3PAR Remote Copy Software User’s Guide for details on how to set up Remote
Copy.
Once you have Remote Copy set up between two HP 3PAR Storage Systems, you must create a
Remote Copy group for testing before going to the next step.
Setting Up Remote Copy Groups for Databases
Observe the following restrictions when setting up Remote Copy groups:
• Every database's log and database file should be added in one Remote Copy group. Two or
more databases in one Remote Copy group are not supported.
• Database files from the same database and log files from the same database located in the
different Remote Copy group are not supported.
• If the database is not in the Remote Copy group, the Remote Copy feature cannot be used.
Follow these steps to set up Remote Copy for a given database:
1. Identify the volumes that contain the database and log files to be copied.
2. Create one Remote Copy group for one database.
3. Add the volumes belonging to the database files and log files into the Remote Copy group
with Remote Copy target volumes.
4. Synchronize the Remote Copy group.
Recovering a Database from a Secondary Site
In the event of a database crash at a primary site, you must have a dedicated target server at the
secondary site that is setup in an identical manner to the original production server for recovery
purposes (same configuration includes instance names, database names, structures, and with
Windows authentication mode set in the same way as well).
Purpose of Remote Copy Software 23