Hi,
After creating custom graphs with NCV for our san's storage processor load I wanted to graph the read & write iops of our san on a per-lun basis. I hoped it could be done kind of dynamic (like disk) with NCV but that seems impossible. My san management station is spitting out nice status messages (using bbwincmd) formatted like this:
<hobbit_display> status san lun,<lun#> green <timestamp> ReadIOPS : <#oips> WriteIOPS : <#iops>
which result in numerous new columns under 'san' like "lun,11" "lun,12" etc (used the ",<#>" format since the 'disk' rrd's seem to use it). I was hoping they would all be 'hidden' in one 'lun' column (like disk) but that was wishfull thinking. Any solution/fix for this is welcome. Clicking one of these columns does show the correct results however (...although no graph since it doesn't even make rrd's).
After reading about SPLITNCV in http://www.hswn.dk/hobbiton/2008/10/msg00423.html I could put something like
SPLITNCV_lun="ReadIOPS:GAUGE,WriteIOPS:GAUGE"
in my hobbitserver.cfg but if I understand correctly this would result in 2 rrd files lun.ReadIOPS.rrd and lun.WriteIOPS.rrd and that's not what I'm looking for. I'm hoping someone here "had fun" with something like this before and is able to point me in the right direction since I'm at the point that my head is about to explode.
Thanks in advance,
Wally
Wally.nl a écrit :
Hi,
After creating custom graphs with NCV for our san's storage processor load I wanted to graph the read & write iops of our san on a per-lun basis. I hoped it could be done kind of dynamic (like disk) with NCV but that seems impossible. My san management station is spitting out nice status messages (using bbwincmd) formatted like this:
<hobbit_display> status san lun,<lun#> green <timestamp> ReadIOPS : <#oips> WriteIOPS : <#iops>
which result in numerous new columns under 'san' like "lun,11" "lun,12" etc (used the ",<#>" format since the 'disk' rrd's seem to use it). I was hoping they would all be 'hidden' in one 'lun' column (like disk) but that was wishfull thinking. Any solution/fix for this is welcome. Clicking one of these columns does show the correct results however (...although no graph since it doesn't even make rrd's).
After reading about SPLITNCV in http://www.hswn.dk/hobbiton/2008/10/msg00423.html I could put something like
SPLITNCV_lun="ReadIOPS:GAUGE,WriteIOPS:GAUGE"
in my hobbitserver.cfg but if I understand correctly this would result in 2 rrd files lun.ReadIOPS.rrd and lun.WriteIOPS.rrd and that's not what I'm looking for. I'm hoping someone here "had fun" with something like this before and is able to point me in the right direction since I'm at the point that my head is about to explode.
Thanks in advance,
Wally
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From - Tue
Hi,
What do you want, exactly ? For information, SPLITNCV (and NCV too) needs a pre-formated output : NAME1: VALUE1 NAME2: VALUE2 You need a new line character at this end of your output (don't ask me why...) You can use NAME= VALUE instead of NAME: VALUE.
An advice, if your script sends data in the right format, you can use SPLITNCV_test=*:GAUGE it allows to get any value stored in RRD file.
In hobbitgraphs.cfg, you can use the following syntax : [test] TITLE My I/O test YAXIS I/O per second FNPATTERN test,(.*).rrd DEF:@RRDIDX@=@RRDFN@:lambda:AVERAGE LINE2:@RRDIDX@#@COLOR@:@RRDPARAM@ GPRINT:@RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:@RRDIDX@:MAX: \: %5.1lf (max) GPRINT:@RRDIDX@:MIN: \: %5.1lf (min) GPRINT:@RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
I hope it could help you. I think it could be usefull to know what you exactly want for final result. (multiple graphs, one graph with multiple lines...)
What do you want, exactly ?
Something impossible probably :)
I want multiple graphs with 2 lines each and I get the feeling that SPLITNCV is limited to 1 line / graph.
I hope the attached screenshots clarify things. If I send status for just 1 lun there is no problem (attached SingleGraph.jpg), I get a column, RRD file and working graph. If I send the data for multiple luns I get multiple columns (attached columns.jpg) instead of a single one (even if I send it in "lun,<#>" format like 'disk' seems to do). But a bigger issue is that I don't get any RRD files/graphs if I do that. It appears that the NCV logic is limited to 1 RRD/graph somehow where I was hoping it would be as flexible as the disk monitor.
What I would like as an end-result is a single 'lun' column which 'unfolds' like disk into multiple graphs something like the attached 'MultipleMockup.jpg' although I thing that even the graph title is an issue since it doesn't like parse stuff like @RRDFN@ in the title field.
I _really_ hope someone has some form of solution/workaround/patch/ideas.
Wally.nl
Wally.nl a écrit :
What do you want, exactly ?
Something impossible probably :)
I want multiple graphs with 2 lines each and I get the feeling that SPLITNCV is limited to 1 line / graph.
I hope the attached screenshots clarify things. If I send status for just 1 lun there is no problem (attached SingleGraph.jpg), I get a column, RRD file and working graph. If I send the data for multiple luns I get multiple columns (attached columns.jpg) instead of a single one (even if I send it in "lun,<#>" format like 'disk' seems to do). But a bigger issue is that I don't get any RRD files/graphs if I do that. It appears that the NCV logic is limited to 1 RRD/graph somehow where I was hoping it would be as flexible as the disk monitor.
What I would like as an end-result is a single 'lun' column which 'unfolds' like disk into multiple graphs something like the attached 'MultipleMockup.jpg' although I thing that even the graph title is an issue since it doesn't like parse stuff like @RRDFN@ in the title field.
I _really_ hope someone has some form of solution/workaround/patch/ideas.
Wally.nl
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Hi,
As far as i know, you can have only one graph illustrating a test. But you can define in your hobbitgraph.cfg several graphs using your rrd files. So you could define like this :
[lun] FNPATTERN lun(.*).rrd TITLE LUNs IOPS YAXIS IOPS DEF:p at RRDIDX@=@RRDFN@:lambda:AVERAGE LINE2:p at RRDIDX@#@COLOR@:@RRDPARAM@ GPRINT:p at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:p at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:p at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:p at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
[lun1] FNPATTERN lun1(.*).rrd TITLE LUN1 IOPS YAXIS IOPS ...
then you could define in your hobbitserver.cfg : GRAPHS="...,lun1,lun2,..."
and finally in bb-hosts : host IP.AD.DR.ESS # TRENDS:*,lun1,lun2...
So, you'll have a graph dedicated for "lun" column, including all IOPS (maybe you could format your test's output to get comprehensive name as "Read_lun1"). And in "trend" column, you'll get separated graphs If I misunderstood your request, please add following details : -your script output format -your actual [lunX] definitions in hobbitgraph.cfg, and SPLITNCV definitions for lun* in hobbitserver.cfg
Hope this helps
Thanks for your suggestions, I had already tried parts of them but so far none of them make me happy.
I'm currently looking at the data/trend method described here: http://www.hswn.dk/hobbiton/2007/06/msg00250.html
It seems like an easy way to create the different RRDs, just need to figure out how to graph them but that's probably not too difficult.
I'll first have to fix bbwincmd (data is send from a windoze box) because the stock version/source is useless (can't send the needed \n in the status/data commands). I'll get back if there's some progress to report.
Wally.nl
Wally.nl a écrit :
Thanks for your suggestions, I had already tried parts of them but so far none of them make me happy.
I'm currently looking at the data/trend method described here: http://www.hswn.dk/hobbiton/2007/06/msg00250.html
It seems like an easy way to create the different RRDs, just need to figure out how to graph them but that's probably not too difficult.
I'll first have to fix bbwincmd (data is send from a windoze box) because the stock version/source is useless (can't send the needed \n in the status/data commands). I'll get back if there's some progress to report.
Wally.nl
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In my limited knowledges about hobbit and NCV module (i don't have any C or system low level skills), you can get multiple files in formating your test output like this :
your text anything you want .... lun0_input : value1 lun0_output : value2 lun1_input : value3 lun1_output : value4 NEW LINE CHARACTER
So you can define your hobbitserver.cvf as it : SPLITNCV_lun="*:GAUGE" (or any other RRD data type) GRAPHS="...,lun0,lun1,lun2..."
You'll have several RRD files, named like this : lun,lun0_input.rrd lun,lun0_ouput.rrd lun,lun1_input.rrd ... then you can define hobbitgraph.cfg as I did : [lun] FNPATTERN lun,(.*).rrd TITLE LUNs IOS YAXIS IOS DEF:p at RRDIDX@=@RRDFN@:lambda:AVERAGE LINE2:p at RRDIDX@#@COLOR@:@RRDPARAM@ GPRINT:p at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:p at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:p at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:p at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
You can define per lun graphs :
[lun0] FNPATTERN lun,lun0(.*).rrd TITLE LUN0 IOS YAXIS IOS DEF:p at RRDIDX@=@RRDFN@:lambda:AVERAGE LINE2:p at RRDIDX@#@COLOR@:@RRDPARAM@ GPRINT:p at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:p at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:p at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:p at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
in bb-hosts, define : IP.AD.DR.ESS hostname # TRENDS:*,lun0,lun1...
So, you'll have a global graph including all LUNs IOS, drawed when you click lun test. And you'll have several lun0, lun1 ... graphs drawed in trends.
If that's not the result you'd like, please be more specific (and don't forget I'm french, so I suck in foreign langages)
participants (2)
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doctor＠makelofine.org
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hobbit＠general-failure.com