How much total and free memory I have in my aix 5.3 server?

UNIX AIX
1

good morning,
how I can know how much total and free memory I have in my AIX 5.3 server, and this is shown in megabytes or gigabytes?

Thank you very much.

2 
# svmon -G -O unit=MB
Unit: MB
--------------------------------------------------------------------------------------
               size       inuse        free         pin     virtual  available   mmode
memory      8192.00     2492.79     5699.21     1096.49     1832.22    6067.31     Ded
pg space   10240.00        13.4

               work        pers        clnt       other
pin          823.62           0           0      272.88
in use      1832.22           0      660.57
3

When i executed this command

svmon -G -O unit=MB

The system show me this error:

svmon: Not a recognized flag: O

Unknown flag

usage:
svmon [-G  [-i Intvl [NumIntvl] ][-z] ]
svmon [-P [pid1...pidn] [-r] [-u|-p|-g|-v] [-ns] [-wfc] [-q [s|m|L|S]] [-t Count] [ -i Intvl [NumIntvl] ] [-l] [-j] [-z]  [-m] ]
svmon [-S [sid1...sidn] [-r] [-u|-p|-g|-v] [-ns] [-wfc] [-q [s|m|L|S]] [-t Count] [ -i Intvl [NumIntvl] ] [-l] [-j] [-z] [-m] ]
svmon [-D sid1...sidn [-b] [-q [s|m|L|S]] [ -i Intvl [NumIntvl] ][-z]]
svmon [-F [fr1...frn] [-q [s|m|L|S]] [-i Intvl [NumIntvl] ][-z] ]
svmon [-C cmd1...cmdn [-r] [-u|-p|-g|-v] [-ns] [-wfc] [-q [s|m|L|S]] [-t Count] [ -i Intvl [NumIntvl] ] [-d] [-l] [-j] [-z] [-m] ]
svmon [-U [lognm1...lognmn] [-r] [-u|-p|-g|-v] [-ns] [-wfc] [-t Count] [ -i Intvl [NumIntvl] ] [-d] [-l] [-j] [-z] [-m] ]
svmon [-W [class1...classn] [-e] [-r] [-u|-p|-g|-v] [-ns] [-wfc] [-q [s|m|L|S]] [-t Count] [ -i Intvl [NumIntvl] ] [-l] [-j] [-z] [-m] ]
svmon [-T [tier1...tiern] [-a superclass] [-x] [-e] [-r] [-u|-p|-g|-v] [-ns] [-wfc] [-q [s|m|L|S]] [-t Count] [ -i Intvl [NumIntvl] ] [-l] [-z] [-m] ]

Thanks.

4

I checked it on AIX 6.1; maybe check the man page for svmon on AIX 5.3 if there is a similar option.
Else use for example awk to calculate MBs.

5

You could have searched this forum, because the question has been asked (and answered) time and again. Now, for one more time:

total memory:

lsattr -El mem0

free memory: depends on what you define as "free", because the AIX tries to put every bit of memory to use - either for programs ("computational memory") or as file cache. Therefore, what is reported as "free" (which more to the point means "unusable at this moment") is a meaningless number. You could stop a running program and the free memory wouldn't even change, because the memory being freed is added to the file cache.

For details see here.

I hope this helps.

bakunin