[Orca-users] Displaying Statistics for NetApp SAN disks in Orca

[David Michaels]

Ayotunde Itayemi wrote:
>
> Thanks David,
>
> I am testing this right now. Can I assume that if I use any of the 2 
> regxp you suggested below, it won't "break" the display of other 
> "regular" disk devices and SVM meta-devices?
>

I don't think it will.  The one problem that could come up is that the 
letter following the "t\d+" part of the regex is also part of the 
hexadecimal set, which introduces ambiguity into the pattern matching 
algorithm.  In theory, it should be able to figure it out, and thus not 
impact the graphs of your other disks either.

The 2nd regex is more explicit and because it does not include 
lower-case 'd' in the hex set, it would not have the ambiguity probelm 
that the first regex does.

Good luck, and let us know how it works for you.

--Dragon

>
>
> 2009/1/20 David Michaels <dragon at raytheon.com 
> <mailto:dragon at raytheon.com>>
>
>
>>     I have got the line below in my /usr/local/lib/orcallator.cfg
>>     file. How do I modify this to show my external LUNs in addition
>>     to internal drives?
>>
>>     In particular the NetApp LUNs.
>>
>>     disk_runp_((?:c\d+t\d+d\d+)|(?:c\d+d\d+)|(?:[ms]d\d+))
>>
>>
>>            4. c13t500A098387393451d0 <NETAPP-LUN-0.2-1.95TB>
>>
>
>
>     That's a really awesome disk identifier.  The regexp above won't
>     work, because it's expecting the target to be a number, and in
>     your case it's hexadecimal.
>
>     First, try using \x after the 't':
>
>     disk_runp_((?:c\d+t\x+d\d+)|(?:c\d+d\d+)|(?:[ms]d\d+))
>                        ^^
>
>     If that doesn't work, try the more verbose method:
>     disk_runp_((?:c\d+t[0-9A-F]+d\d+)|(?:c\d+d\d+)|(?:[ms]d\d+))
>

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