We have a sparc server for which we always recieve memory utilization alerts. (97.01% available memory used by the partition (/MEMORY/MEMORY/MEMUsedMemPerc)).
But when we check the server using prstat and vmstat the meory utilization is normal and swap space utilization is also normal.
This alert occurs almost around 30 times in a day.
I had been trying to identify the root cause why we have been getting these many alerts but unable to identlify.
There might be something i might be missing to look at.
Could you please help me in understanding the memory and swap space utilization and the parameter i might be missing to look at which is causing these alerts.
Preventative measures:
If you have not yet done so, limit ZFS ARC cache to RAM/4 in /etc/system:
Code:
set zfs:zfs_arc_max = 8192000000
Also watch /tmp; have a cleanup routine, and limit it to RAM/3 in /etc/vfstab:
Code:
swap - /tmp tmpfs - yes size=10240m
--
Separate measurement of RAM and swap can be done for statistics - but rarely for alert thresholds.
Instead you should measure the virtual memory, as given by "vmstat" or "swap -s". It is roughly the sum of RAM and swap.
Hi,
i am new to linux/RHEL 6.0 and i have two questions.
1) How to get the CPU utilization and Memory Utilization of all Services running currently?
2) How to get the CPU utilization and Memory Utilization of all Applications running currently?
Please help me to find the script.
... (2 Replies)
Hi,
I am new to AIX, Can someone please help me how to know the swap space, total physical memory and system cache?
We are using AIX 5.3.
Thanks! (3 Replies)
Hi Experts,
Our servers running Solaris 10 with SAP Application. The memory utilization always >90%, but the process on SAP is too less even nothing.
Why memory utilization on solaris always looks high?
I have statement about memory on solaris, is this true:
Memory in solaris is used for... (4 Replies)
Hello All,
I am trying to create a script that will give me the processes that consume swap in %.
i am using the below line to get it done.
virtual=`echo "$virtual/$swp*100"|bc -l|sed -e "s/\(\.\).*/\1/g"`
but getting the following output after running it.
.039
.110
I want the... (3 Replies)
Hi friends
i have a query.
we have two p-series machine(p550 & p570) with HACMP 5.3 and AIX 5.3 hosting SAP.
Now i need to now is there a way or a command to check the memory utilization on these machines on daily basis. I have tried vmstat and iostat but still it's not clear.
We have... (3 Replies)
All,
The (fre) coloumn of the (vmstat) command, does it report the size of the free list including the swap space or it only report on the RAM (physical memory).
BR, (1 Reply)
I need to put a program together to determine the total, available memory and total and available swap on unix machines. I have been searching for weeks and I seem to run into dead ends. Every unix platform I look at has a different way to determine memory info.
Any sugggestions or new... (4 Replies)
07-24-2014
