Graph that shows the number of disks in system

You cannot use a straight SNMP check for this, but you can use a SNMP via Groovy to enumerate the disks and generate the sum as a datapoint value. There are many datasources that access SNMP via Groovy you can use as examples -- a quick search of our backups shows HP_Chassis_MemoryModules among many others.  You will want to focus on this OID - http://oidref.com/1.3.6.1.2.1.25.3

Mark

There are several ways to do this, but the best (IMO) is to create your own DataSource that pulls the list of disks and counts them. The output would be the number of mounted disks. You could then put static or dynamic thresholds on that number to generate the appropriate alerts.

The NetSNMPdiskIO pulls the list of disks via SNMP using the OID .1.3.6.1.4.1.2021.13.15.1.1.2. You could pretty easily write a script to walk that OID and count up the various disks. 

@mnagel beat me to it. Here's what it might look like:

import com.santaba.agent.groovyapi.snmp.Snmp
def hostname = hostProps.get('system.hostname')
def props = hostProps.toProperties()
def snmp_timeout = 10000

def snmp_oid = '.1.3.6.1.4.1.2021.13.15.1.1.2'

disk_count = 0

try {
  x = Snmp.walk(hostname, snmp_oid, props, snmp_timeout)
  println(x)
  println(x.split('\n').size())
  return 0
} catch (Exception e){println(e);return 1}    

 

Hi Stuart,

"Great minds think alike. So, if we disagree, one of us doesn't have a great mind." ?

Thanks for the answer, it seems to do exaclty what i  wanted to do. I will go ahead and try to create my own (first) datasource.

 

Have a nice day,
Henrik