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Re: [hobbit] Re: Disk I/O check for Linux (addendum, "cpu_wait")



Linux host which sents "cpu_wait" works, HPUX doesn't send that.
( I've HPUX, SuSE, Tru64 )

# rrdtool dump ../alfpa01/vmstat.rrd |grep name
               <name> cpu_r </name>
               <name> cpu_b </name>
               <name> cpu_w </name>
               <name> mem_swpd </name>
               <name> mem_free </name>
               <name> mem_buff </name>
               <name> mem_cach </name>
               <name> mem_si </name>
               <name> mem_so </name>
               <name> dsk_bi </name>
               <name> dsk_bo </name>
               <name> cpu_int </name>
               <name> cpu_csw </name>
               <name> cpu_usr </name>
               <name> cpu_sys </name>
               <name> cpu_idl </name>
             *  <name> cpu_wait </name>*
#

Stephen wrote:
I've found HPUX clients don't report some elements and this breaks hobbitgraph... so.... use rrdtool dump {hosts rrd vmstat file path] to see what's collected and compare to the hard defs in hobbitgraph.cfg

=================================
Keith Meserole wrote:
Anyone have any thoughts?

------------------------------------------------------------------------
*From:* Keith Meserole [mailto:km (at) keithm.us]
*Sent:* Tuesday, October 14, 2008 9:07 PM
*To:* hobbit (at) hswn.dk
*Subject:* RE: [hobbit] Re: Disk I/O check for Linux

Hi,
I gave this a try and the vmstat items show up only as objects and not graphs. Part of the host entry is below for this host.

I am sure I am missing something really easy.   Any ideas?
------------------------------------------------------------------------ TRENDS:*,apache:apache|apache1|apache2|apache3,vmstat:vmstat1|vmstat5 ------------------------------------------------------------------------
*From:* RaAL (at) sm-shoemart.com [mailto:RaAL (at) sm-shoemart.com]
*Sent:* Monday, October 13, 2008 7:31 PM
*To:* Henrik Stoerner
*Cc:* hobbit (at) hswn.dk
*Subject:* [hobbit] Re: Disk I/O check for Linux


Hi Henrik,

Thanks, it works .. maybe it will be more comprehensive and impressive if it will give graphical I/O stat per filesystem ?

<<..>>

Raymund A. Layoso
Jr. System Administrator
Technical Support Group - Information Technology Services
SM Retail Inc.
SM Corporate Office, Bldg D
1000 Bay Boulevard, SM Central Business Park
Bay City, Pasay City 1300

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*Henrik Stoerner <henrik (at) hswn.dk>*

10/14/2008 04:34 AM

	
To
	RaAL (at) sm-shoemart.com
cc
	
Subject
	Re: Disk I/O check for Linux



	





Hi,

the Hobbit mailing list - hobbit (at) hswn.dk - really is the best place for
support questions.

The only I/O measurement built into Hobbit is the data collected from
"vmstat", which gives you an overall measure of the amount of time
spent waiting for disk I/O. This graph is not displayed by default;
you can make them appear on the "trends" page by adding
  TRENDS:*,vmstat:vmstat1|vmstat5
to each of the host entries in bb-hosts. That will give you a "CPU
utilisation" graph that includes the I/O wait time, and a "Block I/O"
graph showing the number of blocks read from/written to a disk device.


Regards,
Henrik


On Tue, Oct 14, 2008 at 04:01:29AM +0800, RaAL (at) sm-shoemart.com wrote:
> Is there any scripts in hobbit that monitors disk I/O performance in linux
> box ? and with graphical presentation ?
> Can you help me on this since we are now having an issue with disk I/O
> performance in our Oracle servers ?