Redhat linux server resource monitoring

[unix syzadmin]

on aix; I pretty much use native tools (vmstat, iostat & topas) for server
resource monitoring.
I have scheduled a cron job to have nmon capture server resource
utilization at 5 minute intervals.  This data can be used with
nmon-analyzer to generate graphs.  On days where performance issues are
reported; nmon graphs is a good thing to share with the team for cpu,
memory, paging and network.

Most of my IBM hardware runs virtual machines.  While nmon is mostly used
to get the server resource utilization for any given day; ganglia is good
tool that gives graphs over a week, month and year.  Also ganglia is good
for virtualized/clustered environments as there are graphs that stack up
the resource utilization of all the virtual machines/nodes.  This helps us
to quickly determine if there is capacity to host more virtual machines or
not.  For a clustered environment it helps to determine if the load is
evenly distributed and if all the available resources of a cluster are
maxed out or not.



On Sat, Nov 12, 2011 at 2:31 PM, Greaser, Tom <tgreaser at hsc.wvu.edu> wrote:

> Hello Ganashekar
>
> Like you said nmon is a good on system tool.  Another good one is sar
>  "think its short for system activity report". (on my fedora box
> sar2.x86_64    2.3.0-2.fc15)
> I like to use ksar http://sourceforge.net/projects/ksar/ (java app) that
>  reads all the sar data.
> Like others off system monitor tools nagios and cacti are my go to tools.
>
> What tools did you / do you use on AIX ? Its always good to know what
> others do .
>
>
>
>
> Message: 3
> Date: Fri, 11 Nov 2011 21:37:28 -0500
> From: Gnanashekar <unixsyzadmin at gmail.com>
> To: "redhat-list at redhat.com" <redhat-list at redhat.com>
> Subject: Redhat linux server resource monitoring
> Message-ID: <84E965CF-E4E8-4448-BB76-F35E6B4901CE at gmail.com>
> Content-Type: text/plain;       charset=us-ascii
>
> Hi,
>
> I am from an IBM aix background.
> Recently I have started managing Linux on intel hardware.
>
> I am looking for a tool to monitor and trend the resource (CPU, memory,
> paging & network) utilization. I use nmon on IBM hardware.  I can also
> download nmon executable compiled for intel and red hat Linux.
>
> Curious to know if there is any other tool similar to nmon that majority
> of the Linux community uses.
>
> Thanks,
>
> Sent from my iPad
>
>
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