Additionally, you create the RECOV1 disk
group using the remaining two disk groups; this disk group will be used to mirror the control file
and redo log files as well as to host the Flash Recovery Area. In Figure 10-16, you specify DATA1
as the disk group for database storage. In Figure 10-17, you specify RECOV1 for the Flash
Recovery Area.
FIGURE 10-14 Nodes to include for RAC installation
374 Oracle Database 11g DBA Handbook
FIGURE 10-15 Creating ASM raw disk #1
FIGURE 10-16 Selecting the ASM disk group for storage
Chapter 10: Real Application Clusters 375
As part of the database creation process, OUI creates several services in tnsnames.ora, one for
the cluster database (with load balancing enabled) and one for each instance, as you can see in
this listing:
# Generated by Oracle configuration tools.
RAC =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = voc1)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = voc2)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = voc3)(PORT = 1521))
(LOAD_BALANCE = yes)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = rac.world)
)
)
LISTENERS_RAC =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = voc1)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = voc2)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = voc3)(PORT = 1521))
)
FIGURE 10-17 Selecting the ASM disk for Flash Recovery Area
376 Oracle Database 11g DBA Handbook
RAC3 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = voc3)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = rac.
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