So each PDU has 2 - 3 phase plugs on it? One connected to each Tower? 
 
If you lose City power, does a server go DOWN?  
 
 

Michael D. Shook
Systems Analyst - Data Integration
Saddle Creek Corporation
[EMAIL PROTECTED] (mailto:[EMAIL PROTECTED])
863 668 4477 (work)
863 665 1261 (fax)
www.saddlecrk.com (http://www.saddlecrk.com/)  

--------------------------------------------------------------------------------

From: Servers Alive Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of 
Michael Letschin
Sent: Friday, January 26, 2007 10:11 AM
To: Servers Alive Discussion List
Subject: RE: [SA-list] Monitor a group of checks





I have a very redundant solution(A bit overkill but I did not design it) 

                

Each Rack Has a City and a UPS Plug, The UPS is on an ATS from a City feed to a 
Generator.  The UPS is rather old and the SNMP monitor for it is not yet 
working.  

 

My Current SAlive Config(Per PDU): 

 

PDU Ping Check 

                Sub-Group – Tower A(City) 

                                Tower A Leg 1 SNMP Check – Dependent on 
Ping Check 

                                Tower A Leg 2 SNMP Check – Dependent on 
Ping Check 

                                Tower A Leg 3 SNMP Check – Dependent on 
Ping Check 

                Sub-Group – Tower B(UPS) 

                                Tower B Leg 1 SNMP Check – Dependent on 
Ping Check 

                                Tower B Leg 2 SNMP Check – Dependent on 
Ping Check 

                                Tower B Leg 3 SNMP Check – Dependent on 
Ping Check 

 

I do this for each PDU, I will then know if each leg has problems(not a huge 
issue so I am not pressed but it is what I can do).  The problem becomes that I 
can not check an entire leg.  So if power drops then I would get 3 pages from 
each PDU.  I have even thought about grouping all the city and all the UPS but 
I need a way to pass an alert if a group fails. 

 

Does that explain my situation better? 

 

 

Michael Letschin 

Network Administrator 

First Advantage-SafeRent 

(301) 881-3400 

WWW.FADVSafeRent.com (http://www.fadvsaferent.com/) 

[EMAIL PROTECTED] (mailto:[EMAIL PROTECTED]) 



 

From: Servers Alive Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of 
Michael Shook
Sent: Friday, January 26, 2007 8:51 AM
To: Servers Alive Discussion List
Subject: RE: [SA-list] Monitor a group of checks 

 

The answer immediately is that you use dependencies to make each PDU check 
dependant on whether or not the Tower check is UP. 

If this is what you want to do, full instructions are in the user guide. 

 

If you're looking for something else, please explain further. 

 

Michael D. Shook
Systems Analyst - Data Integration
Saddle Creek Corporation
[EMAIL PROTECTED] (mailto:[EMAIL PROTECTED])
863 668 4477 (work)
863 665 1261 (fax)
www.saddlecrk.com (http://www.saddlecrk.com/) 

 

 
--------------------------------------------------------------------------------



From: Servers Alive Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of 
Michael Letschin
Sent: Thursday, January 25, 2007 4:53 PM
To: Servers Alive Discussion List
Subject: [SA-list] Monitor a group of checks 

I am trying to devise a way to monitor my Rack PDUs without getting 10 pages 
everytime City power is lost.  Heres the scenario.  Any suggestion would be 
helpful.  I really would like a single page is all of City power drops, not one 
per PDU. 

 

Each Rack            1 PDU(with SNMP Monitoring)208  - Three Phase Power 

Each PDU             2 Towers – 1 for City Power, 1 for UPS Power( Can be 
checked independent) 

Each Tower         3 Phases(Can each be checked individually) 

 

Right now I have each phase set to send an email and each tower, and if a ping 
against the PDU fails.  The phases are dependent upon their tower and the tower 
upon their PDU but that still leaves a page for each PDU if I lose City or UPS 
power for some reason. 

 

Thanks 

 

 

Michael Letschin 

Network Administrator 

First Advantage-SafeRent 

(301) 881-3400 

WWW.FADVSafeRent.com (http://www.fadvsaferent.com/) 

[EMAIL PROTECTED] (mailto:[EMAIL PROTECTED]) 





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