HP StorageWorks Storage Mirroring for Linux User's Guide (T2558-96317, June 2009)

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Configuring the hardware
You need to configure your hardware so that Storage Mirroring traffic is permitted access through the
router and directed appropriately. Using the port information from the previous section, configure
your router identifying each Storage Mirroring server, its IP address, and the Storage Mirroring and
router ports. Also, note the following caveats.
 Since Storage Mirroring communication occurs bidirectionally, make sure you configure your
router for both incoming and outgoing traffic for all of your Storage Mirroring servers and Storage
Mirroring clients.
 In addition to UDP heartbeats, Storage Mirroring failover can use ICMP pings to determine if the
source server is online. If you are going to use ICMP pings and a router between the source and
target is blocking ICMP traffic, failover monitors cannot be created or used. In this situation, you
must configure your router to allow ICMP pings between the source and target.
Since there are many types of hardware on the market, each can be configured differently. See your
hardware reference manual for instructions on setting up your particular router.
Inserting the servers in the Management Console
If your network is configured to propagate UDP broadcasts, your servers will be populated in the
Management Console from across the router. If not, you have to manually insert the servers, by
selecting Insert, Server. Type the IP address of the router the server is connected to and the port
number the server is using for heartbeats.
Establishing the connection
Once your server is inserted in the Management Console, you can use the Connection Wizard or the
Connection Manager to establish your connection. See Establishing a Connection Using the
Connection Wizard on page 5-1 or Establishing a Connection Using the Connection Manager
on page 6-1 for details on establishing a connection through either of these methods.
Storage Mirroring
Server Service Listen
Port
The Service Listen Port sends and receives
TCP communication between Storage
Mirroring servers and between Storage
Mirroring servers and Storage Mirroring
clients.
1500
Storage Mirroring
Server Heartbeat
Transmit Port
The Heartbeat Advertisement port sends and
receives broadcast UDP communications to
populate the Management Console tree with
Storage Mirroring servers.
1500
Storage Mirroring
Server Status Listen
Port
The Status Listen Port sends directed UDP
comunications to display status and statistics
in the Management Console.
1505
NOTE: If you change any of the port settings, you must stop and restart the Storage Mirroring
daemon for the new port setting to take effect.
Port Description
Default
Setting
Record
Your Port
Setting