Matakuliah
Tahun
: T0413
: 2009
Client Connectivity
Pertemuan 5
Directories
• System database directory
• list db directory
• Local database directory
• list db directory on <drive/path>
• Node directory
• list node directory
• DCS directory
• list dcs directory
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I) Setup required at the server
From the Configuration Assistant (CA)
a) DB2COMM
myhost.ibm.com
Instance “DB2”
Choose Configure  DB2 Registry
b) SVCENAME
Choose Configure  DBM configuration
Find “Communications” section.
Or
mydb1
From the Control Center
a) DB2COMM
Right click on instance and choose “Set up communications...”
b) SVCENAME
Right click on instance and choose “Configure parameters...”
Find “Communications” section.
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DB2COMM=TCPIP
Port = 50000
User defined in O/S:
User ID = myuser
Password = mypsw
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Or
 Manually using commands:
a) SVCENAME (service name) in DBM CFG
update dbm cfg using svcename <port # or service name>
If you use a service name, ensure to update these files:
– Linux: /etc/services
– Windows: c:\winnt\system32\drivers\etc\services
Example: db2cdb2inst1 50000/tcp
b) DB2COMM in the DB2 Registry
db2set DB2COMM=TCPIP
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Launching Configuration Assistant (CA)
Start > Programs > IBM DB2 > Set-up Tools > Configuration Assistant
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Configuration Assistant
Cataloged databases
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Verifying the DB2COMM Registry Variable
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Configuration Assistant > Configure menu > DB2 Registry
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DB2COMM Registry Variable
• Note: Changing
this parameter
requires an
Instance re-start
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II) Setup required at the client
Client
Application
connect to mydb1
user myuser
using mypsw
db directory
node directory
mydb1
mynode
Two commands to run at the client:
1) catalog tcpip node mynode
remote myhost.ibm.com server 50000
2) catalog database mydb1 at node mynode
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Putting both setups together: At the client and server
myhost.ibm.com
Client
Application
connect to mydb1
user myuser
using mypsw
db directory
node directory
mydb1
mynode
Instance “DB2”
network
Two commands to run at the client:
mydb1
DB2COMM=TCPIP
Port = 50000
1) catalog tcpip node mynode
remote myhost.ibm.com server 50000
2) catalog database mydb1 at node mynode
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User defined in O/S:
User ID = myuser
Password = mypsw
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Setup required at the client
Two commands to run at the client:
1) catalog tcpip node mynode
remote myhost.ibm.com server 50000
2) catalog database mydb1 at node mynode
OR
The Configuration Assistant
Control Center
- Right click on white space
- Choose “Add database using wizard...”
- From the “All databases”
folder, right click and choose
“Add”
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Launching the Add Database Wizard from the CA
Configuration Assistant > Selected menu > Add Database Using Wizard
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Add Database Wizard
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Caution!
• The Configuration Assistant will allow you to catalog
databases with invalid hostnames, port numbers, etc.
• Everything might look correct; however, when you try to
connect to the database, you will receive a connection error!
• Also ensure the user ID and password you provide to connect
to the remote database is correct
– By default the authentication takes place on the DB2
server you are trying to connect to, therefore, you must
provide a user ID and password defined on that server
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Search and Known methods (Discovery Mode)
Search the
network
for any
server
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Enter server
name and
choose
protocol
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Discovery by DB2 Clients
DB2 Client
• Search and locate DB2 servers on
the network
Discovery Message
• Requires the DAS to be running
on the DB2 server in order to
discover databases
• Can prevent or "hide" a server /
database from being discovered
by setting the appropriate DAS,
Instance, and Database level
configuration parameters
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DB2 Server
DAS Level
DISCOVER=SEARCH
Instance Level
DISCOVER_INST=DISABLE
DISCOVER_INST=ENABLE
Database Level
DISCOVER_DB=DISABLE
DISCOVER_DB=ENABLE
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Client and Server Profiles
• If you are configuring a large number of servers or
clients, rather than set up each one individually, you
can fully set up one, export a profile (i.e.
configuration file) from it, then apply the profile to
the other clients/servers
• This saves an administrator a lot of time when
setting up the environment
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