Why "Target Server Memory" = "Total Server Memory" (Permanently)?

Question

Hello,
could you please help me to understand why values of next Performance counters are permanently equal?:
SQLServer:Memory Manager / Target Server Memory (KB)
SQLServer:Memory Manager / Total Server Memory (KB)
22906680 = 22906680
even after we added 4 GB RAM to this server.
Technical details: ________________________________
Microsoft SQL Server: 2008-R2 (SP1) - 10.50.2500.0 (X64), Standard Edition,
  - MIN server memory (MB): 4 096 (run_value)
  - MAX server memory (MB): 2 147 483 647 (run_value)
Microsoft Windows:  2008-R2 NT 6.1 (Build 7601: Service Pack 1) (Hypervisor), Enterprise Edition,
HW: Virtual (VMWare),
CPU: 8 virtual (Intel Xeon X5550),
RAM: 24 GB.
This server is:
  - dedicated for Microsoft SQL Server only,
  - member of
"Microsoft Active Directory".
__________________________________________________________ If isn't above described anything, the following applies: Technical details: * OS: Windows Server v2008-R2, English, Enterprise Edition, x64, SP1 ** My User-Account is member of 'Administrators'
local security group. * MS-SQL-Server: v2008-R2, English, Enterprise Edition, x64, SP1 ** My User-Account is member of 'SysAdmin' db-role.

Answer 1

Hello Shanky_621,
as I promised - there are
monitored values. New counters are highlighted by green color. And finally counter "Memory \ Pages/sec" is here ;-) :
Time interval: 02.04.2015 07:00 - 16:00 (Sample interval = 15 seconds)
Performance Counter
Average
Minimum
Maximum
Memory \
Available MBytes
1 837.00
1 510.00
2 010.00
Memory \
Page Faults/sec
2 730.00
190.00
16 922.00
Memory \
Pages/sec
0.53
0.00
688.00
Paging File ()\ % Usage
1.89
1.89
1.89
Process(sqlservr) \ Page Faults/sec
1 737.00
26.00
4 948.00
Process(sqlservr) \ Page File MBytes
22 609.00
21 401.00
21 725.00
Process(sqlservr) \ Working Set (MB)
21 299.00
21 153.00
21 429.00
SQLServer:Buffer Manager \
Buffer cache hit ratio:
99.41
78.11
100.00
SQLServer:Buffer Manager \
Checkpoint Pages/sec:
42.00
0.00
1 263.00
SQLServer:Buffer Manager \
Free List Stalls/sec
0.00
0.00
0.13
SQLServer:Buffer Manager \
Free Pages
2 377.00
95.00
50 829.00
SQLServer:Buffer Manager \
Lazy Writes/sec
1.34
0.00
138.00
SQLServer:Buffer Manager \
Page Life Expectancy (PLE):
2 331.00
3.00
4 294.00
SQLServer:Buffer Manager \
Page Reads/sec
6 435.00
0.00
130 462.00
SQLServer:Memory Manager \
Memory Grants Pending
0.00
0.00
0.00
SQLServer:Memory Manager \
Target Server Memory (KB)
20 480.00
20 480.00
20 480.00
SQLServer:Memory Manager \
Total Server memory (KB)
20 480.00
20 480.00
20 480.00
SQLServer:SQL Statistics \
Batch Requests/sec
1 427.00
63.00
5 690.00
System \ Processor Queue Length
0.177
0.00
4.00