total system memory

[clinton]

Is there a way to find out the total memory that a unix system has? I mean total memory that a system running oracle has.

[grjohnson]

Do a top command at the unix prompt

> top

Memory: 2048M real,

Tells you how much RAM you have on your system.

Cheers

[Sureshy]

you can also check how much memmory is available using :

#sar -r

#man sar
will give you help pages on this.

man -k will give you related commands to a subject of your choice. e.g. man -k memmory.

Suresh

[julian]

Originally posted by grjohnson
Do a top command at the unix prompt

> top

TOP is not installed by default in Solaris for example.

[sazzadur]

You can also try

prtcnf|grep mem

[sazzadur]

Sorry that should be

prtconf|grep mem

never could use a keyboard

[julian]

Originally posted by sazzadur
Sorry that should be

prtconf|grep mem

never could use a keyboard

I am afraid PRTCONF does not work in Solaris. It works in HP and Linux.

[ales]

Originally posted by sazzadur
Sorry that should be

prtconf|grep mem

never could use a keyboard

That should be

prtconf|grep -i mem

Originally posted by julian

I am afraid PRTCONF does not work in Solaris. It works in HP and Linux.

Strange, in my Solaris does ... try lowercase ;-)

$ uname -sir

SunOS 5.6 SUNW,Ultra-4

$ prtconf|head -2

System Configuration:  Sun Microsystems  sun4u

Memory size: 1024 Megabytes

[julian]

Solaris does ... try lowercase

Yep, it worked :-)

[a128]

For finding out free memory on Solaris, I've tried as suggested but it complains:

# sar -r
sar: can't open /var/adm/sa/sa06
No such file or directory

I went to the /var/adm/sa and check, there is no sa06 indeed. Do I need to do anything before I run sar -r?

Thanks,