Modify the oracle of the SGA size

1, the backup database;
2, shutdown, unplug the power supply and a variety of connection lines, out of chassis, open chassis cover to increase the memory;
3 After completion, as is the resumption of the various components and connectors is good, electric start, the system to normal operation;
4, into the system look and found the memory has been successfully installed;
5, modify the database SGA parameters:
SQL> show sga

Total System Global Area 2602007792 bytes
Fixed Size 740592 bytes
Variable Size 335544320 bytes
Database Buffers 2264924160 bytes
Redo Buffers 798720 bytes

SQL> alter system set sga_max_size = 5000m scope = spfile;

System altered.

SQL> shutdown immediate;

SQL> startup

SQL> show sga

Total System Global Area 5252811728 bytes
Fixed Size 744400 bytes
Variable Size 2986344448 bytes
Database Buffers 2264924160 bytes
Redo Buffers 798720 bytes

6, inspection systems and databases completely correct, the backup system
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