[drraw-users] Newbie - CDEF and Units

[Justin Lambert]

Wow - that was amazingly simple now that I know that. Converting
everything to bytes then back to MB fixed the unit problem as well.

One last (probably very easy question) is how do I add a CDEF in the
bottom portion of the graphing box so I can do a 95th percentile?
=numbytes,95,PERCENT

Thanks,
jl


-----Original Message-----
From: drraw-users-bounces at taranis.org
[mailto:drraw-users-bounces at taranis.org] On Behalf Of Christophe Kalt
Sent: Tuesday, November 13, 2007 7:18 PM
To: drraw-users at taranis.org
Subject: Re: [drraw-users] Newbie - CDEF and Units

On Nov 12, Justin Lambert wrote:
| I am using drraw 2.1.3 and having a horrible time getting a CDEF added
| to my graph.  I must be making it way harder than what it needs to
be...
| 
| CDEF=used_mem,1024,*
| 
| What do I put in which blanks?  I have read the directions and am not
| getting any help and haven't been able to find the answer to this
| (seemingly) simple question through google. 

"used_mem" is wrong, that's the DS name in the RRD file, but
as you added it to the graph, drraw named it differently,
usually a single letter (a, b, c, ...).  That's what you need
to use in the CDEF box.

| I am also having a problem with units on my graphs.  My data is in MB
-
| how do I get it to display that on the graphs without first converting
| my data to bytes then using the units exponent to convert it back to
MB?

RRDtool should allow to do this, but that's never worked well
for me, so i often end up converting units.
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