topic Re: memory is not visible at OS level. in Operating System - HP-UX

memory is not visible at OS level.

amipankaj — Tue, 02 Nov 2010 11:37:13 GMT

Dear experts,

Here i got some strage kind of thing. I checked on server with stm and found 32gigs memory available on the server but with top, i can see only 8gigs. Can you please help me with finding those lost memory and whats the probable cause of it?

Total Configured Memory : 32768 MB
Page Size: 4096 Bytes

Memory interleaving is supported on this machine and is ON.

Memory Board Inventory

DIMM Slot Size (MB)
--------- ---------
0A 2048
0B 2048
0C 2048
0D 2048
1A 2048
1B 2048
1C 2048
1D 2048
2A 2048
2B 2048
2C 2048
2D 2048
3A 2048
3B 2048
3C 2048

Load averages: 0.61, 0.60, 0.57
712 processes: 631 sleeping, 80 running, 1 zombie
Cpu states:
CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
0 0.63 74.3% 0.0% 3.0% 22.8% 0.0% 0.0% 0.0% 0.0%
1 0.59 43.6% 0.0% 3.0% 53.5% 0.0% 0.0% 0.0% 0.0%
2 0.61 56.4% 0.0% 7.9% 35.6% 0.0% 0.0% 0.0% 0.0%
3 0.62 54.5% 0.0% 5.0% 40.6% 0.0% 0.0% 0.0% 0.0%
4 0.61 48.5% 0.0% 4.0% 47.5% 0.0% 0.0% 0.0% 0.0%
5 0.63 52.5% 0.0% 5.0% 42.6% 0.0% 0.0% 0.0% 0.0%
6 0.61 40.6% 0.0% 11.9% 47.5% 0.0% 0.0% 0.0% 0.0%
7 0.63 47.5% 0.0% 4.0% 48.5% 0.0% 0.0% 0.0% 0.0%
--- ---- ----- ----- ----- ----- ----- ----- ----- -----
avg 0.61 51.5% 0.0% 5.8% 42.7% 0.0% 0.0% 0.0% 0.0%

Memory: 8374916K (7160704K) real, 23258852K (21558124K) virtual, 40536344K free Page# 1/29

Thanks and Regards,
Pankaj Roy

Re: memory is not visible at OS level.

Torsten. — Tue, 02 Nov 2010 11:53:07 GMT

There is something wrong

3A 2048
3B 2048
3C 2048

where is 3D?

A whole rank may be disabled.

Re: memory is not visible at OS level.

amipankaj — Tue, 02 Nov 2010 12:11:02 GMT

ooooh ..thats my mistake, here the the output...

Memory Board Inventory

DIMM Slot Size (MB)
--------- ---------
0A 2048
0B 2048
0C 2048
0D 2048
1A 2048
1B 2048
1C 2048
1D 2048
2A 2048
2B 2048
2C 2048
2D 2048
3A 2048
3B 2048
3C 2048
3D 2048
--------- ---------
System Total (MB): 32768

thanks and regards,
pankaj roy

Re: memory is not visible at OS level.

Matti_Kurkela — Tue, 02 Nov 2010 12:45:58 GMT

Please show the output of:

swapinfo -tam

MK

Re: memory is not visible at OS level.

Jayakrishnan G Naik — Tue, 02 Nov 2010 13:18:43 GMT

Hi Pankaj

There is no issues with your system. The 8G you mentioned is the memory used by "user processes" and not the physical memory size.

top reports the virtual and real memory "used by user processes(with the amount of memory considered 'active' in paranthesis) and the amount of free memory".

If you want to see the physical memory size from OS, use one of the following.

ia_64(Integrity Servers)
#machinfo

PA-RISC & ia_64 servers
#print_manifest (please find the location and execute, normally under /opt/ignite/bin)

Regards
Jayakrishnan G Naik

Re: memory is not visible at OS level.

amipankaj — Tue, 02 Nov 2010 14:07:15 GMT

Thanks for the response.....here i got some different output. the system is showing 64gigs memory.

can someone please let us know why this is not showing in other commands and not available to system/application?

one more thing, we have RP4400 model. can someone please tell me, how may internal disk we can add to it?

Thanks and Regards,
Pankaj Roy

Re: memory is not visible at OS level.

amipankaj — Tue, 02 Nov 2010 14:08:25 GMT

@Matti - swapinfo -tam is showing 8gigs memory.

Re: memory is not visible at OS level.

Shibin_2 — Wed, 03 Nov 2010 02:27:43 GMT

where did you get the different output of 64G ?

Can you share the output of swapinfo -tam and uname -m ?

Re: memory is not visible at OS level.

Torsten. — Wed, 03 Nov 2010 05:40:00 GMT

>> one more thing, we have RP4400 model. can someone please tell me, how may internal disk we can add to it?

The rp4440 can have 2 internal disks.