Free SGA Memory Available is 0 ?

Question

Hi,
We need to increased SGA_TARGET size but in sgainfor showing Free SGA Memory Available is  0
how can we increased SGA_TAGGET?
SQL> select * from v$sgainfo;
NAME BYTES RES
Fixed SGA Size 2059216 No
Redo Buffers 14712832 No
Buffer Cache Size 1929379840 Yes
Shared Pool Size 805306368 Yes
Large Pool Size 16777216 Yes
Java Pool Size 16777216 Yes
Streams Pool Size 50331648 Yes
Granule Size 16777216 No
Maximum SGA Size 2835349504 No
Startup overhead in Shared Pool 251658240 No
Free SGA Memory Available                 0
We have 10GB RAM out of 10 7GB is utilizing.
$ free -m
total used free shared buffers cached
Mem:         10136       7297       2838          0        462       3866
-/+ buffers/cache: 2968 7168
Swap: 5119 0 5119

Answer 1

819136 wrote:
Hi,
We need to increased SGA_TARGET size but in sgainfor showing Free SGA Memory Available is  0
how can we increased SGA_TAGGET?
SQL> select * from v$sgainfo;
NAME BYTES RES
Fixed SGA Size 2059216 No
Redo Buffers 14712832 No
Buffer Cache Size 1929379840 Yes
Shared Pool Size 805306368 Yes
Large Pool Size 16777216 Yes
Java Pool Size 16777216 Yes
Streams Pool Size 50331648 Yes
Granule Size 16777216 No
Maximum SGA Size 2835349504 No
Startup overhead in Shared Pool 251658240 No
Free SGA Memory Available                 0
We have 10GB RAM out of 10 7GB is utilizing.
$ free -m
total used free shared buffers cached
Mem:         10136       7297       2838          0        462       3866
-/+ buffers/cache: 2968 7168
Swap: 5119 0 5119Increase the SGA_MAX_SIZE parameter andthen only you will able to increase the sga_target.
Since sga_max_target is static parameter ,there you have to bounce the db .
SQL> alter system set sga_max_size=xxM scope=spfile;
shut immediate
startup
alter system set sga_target=xxm;
Hope this may help you
--neeraj