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Database Administration
Reference : Database Startup Parameters : Alphabetical listing of database startup parameters : Blocks in Alternate Buffer Pool (-B2)
 
Blocks in Alternate Buffer Pool (-B2)
Operating system and syntax
UNIX / Windows
-B2 n
Use with
Maximum value1
Minimum value
Single-user default
Multi-user default2
CC, DBS
1,000,000,000 or 125,000,000
10
0
0
1 The maximum value of the sum of -B + -B2. 1,000,000,000 for 64-bit platforms; 125,000,000 for 32-bit platforms. The maximum is system dependent and limited by available memory.

2 The users value is specified by the Number of Users (-n) parameter.

n
The number of blocks allocated in the alternate buffer pool.
Use Blocks in Alternate Buffer Pool (-B2) to specify the number of blocks in the alternate buffer pool. The optimum value depends on your application.
You cannot specify Blocks in Alternate Buffer Pool for a Replication target database.