Re: AIC MEMORY CHECK

I would say you need to pay attation to " sr, po, pi" columns.
This question is not so easy to answer in UNIX systems.
There is good paper "The SolarisMemorySystem Sizing,ToolsandArchitecture" 
from Sun about UNIX memory architecture concepts. If you have time take a 
look.
I would say, first of all you need pay your attention to ?sr? ? ?Pages 
scanned by page-replacement algorithm?.
If you have this figure not 0 for a long time then your system is out of 
physical memory.

Regards,
Jurijs






"Seema Singh" <oracledbam@xxxxxxxxxxx>
Sent by: oracle-l-bounce@xxxxxxxxxxxxx
19.06.2004 16:33
Please respond to oracle-l
 
        To:     oracle-l@xxxxxxxxxxxxx
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        Subject:        AIC MEMORY CHECK


Hi
In AIX whcih command is used to check memeory availability?
What is free column in vmstat output?

SQL> !vmstat 2
kthr     memory             page              faults        cpu
----- ----------- ------------------------ ------------ -----------
r  b   avm   fre  re  pi  po  fr   sr  cy  in   sy  cs us sy id wa
3  2 701104  9931   0   0   0 172  391   0 932  484 494 16  9 73  2
6  3 701104  9925   0   0   0   0    0   0 1248 9900 24754 62 31  6  1
6  2 701104  9925   0   0   0   0    0   0 1590 10025 32335 59 38  2  1
8  2 701104  9922   0   0   0   0    0   0 1428 8472 27814 57 37  6  0
6  2 701830  9168   0   0   0   0    0   0 1180 8425 29490 58 37  5  0
8  2 701855  9110   0   0   0   0    0   0 1395 8462 29308 61 35  3  1
10  2 701857  9107   0   0   0   0    0   0 1095 7735 28840 58 36  5  0
11  2 702440  8492   0   0   0   0    0   0 1491 11994 32170 61 38  1  0
8  2 703832  7035   0   0   0   0    0   0 1612 11183 30331 65 34  2  0
14  2 703112  7781   0   0   0   0    0   0 1354 9157 31100 56 39  3  1
10  2 703732  7129   0   0   0   0    0   0 1317 9784 36044 57 42  0  0
11  2 704314  6518   0   0   0   0    0   0 1359 10158 33897 64 36  0  0
10  2 704114  6715   0   0   0   0    0   0 1672 11565 32874 57 42  0  0
9  2 704137  6693   0   0   0   0    0   0 1396 11428 29373 66 33  1  0
4  2 702762  8136   0   0   0   0    0   0 1068 7060 21805 44 30 24  2
5  3 702271  8649   0   0   0   0    0   0 1263 5920 22050 44 26 28  2
6  3 702952  7940   0   0   0   0    0   0 1528 7155 24400 50 28 17  5
18  3 705186  5597   0   0   0   0    0   0 1311 9586 32290 57 39  4  1
8  2 705246  5536   0   0   0   0    0   0 1284 8678 32667 60 38  2  0
7  3 706391  4336   0   0   0   0    0   0 1346 9808 29454 55 40  5  0
kthr     memory             page              faults        cpu
Thx
-seema

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