question about "unknown DS name 'PrinterTonerCartrid'" 🔗 link

I deciced to change my status line from

        Printer Cartridge Counter = $SNMPTONERCOUNTER
to 
        Printer Toner Cartridge Counter = $SNMPTONERCOUNTER

and started getting the dreaded error "unknown DS name 'PrinterTonerCartrid'

Q1) Is is possible to dump the file edit the name from 'PrinterCartridgeCo' to 'PrinterTonerCartrid' and the restore?

My status line look as follows:


       LINE="status $TARGETHOST.Prn $COLOR `date`
        
        Printer Counter = $SNMPPAGECOUNTER
        Printer Cartridge Counter = $SNMPTONERCOUNTER
        Total Pages Printed Since $SINCE When We Started Counting = $PAGESPRINTED
        Delta Pages Printed = $DELTAPAGESPRINTED


"
All I want to plot is the Delta Pages Printer = line. 

Q2) Is there a way to tell rrd to ignore other lines that I added to the status?

Thanks

Robert

Robert P. McGraw, Jr.
Manager, Computer System                    EMAIL: user-33cf07af04dd@xymon.invalid
Purdue University                            ROOM: MATH-807
Department of Mathematics                   PHONE: (XXX) XXX-XXXX
XXX N. University Street                      
West Lafayette, IN XXXXX-XXXX

On Tue, Mar 2, 2010 at 07:34, McGraw, Robert P <user-33cf07af04dd@xymon.invalid> wrote:

Yes, try a "man rrdrestore". You'd do an rrdtool dump, then edit the
XML file, then rrdtool restore. At least, that's how it's documented.

And here I thought you also wanted the Printer [Toner] Cartridge
Counter too. If it's only the one value, you could use:
NCV_Prn="DeltaPagesPrinter:GAUGE,*:NONE"

but that's only if the RRD file doesn't already have them. You could
erase/rename your RRD and start anew, or you can try to split it
somehow. There's probably a utility for isolating DSs from an RRD, but
that's better asked in an RRDTOOL forum. If you want to rename now and
attempt to split/merge later, there's definitely a utility for merging
RRD history; I've used "merge-rrd.tgz" (merged-rrd.py, 2005-04-11) for
that.

If you anticipate changing the number of values available for graphing
(or other analysis) in the future, you might consider using splitncv
instead. TEST2RRD is unchanged, but NCV_Prn becomes SPLITNCV_Prn:
SPLITNCV_Prn="DeltaPagesPrinter:GAUGE,*:NONE"

On Tue, Mar 2, 2010 at 18:25, Richard Finegold <user-6a016aac278a@xymon.invalid> wrote:

NCV_Prn="DeltaPagesPrinter:GAUGE,*:NONE"
SPLITNCV_Prn="DeltaPagesPrinter:GAUGE,*:NONE"

I copied your typo. They should be "DeltaPagesPrinted".