Logical Disk Monitor and Group Alerting

[BrianW]

I understand that by default there are logical disk free space monitors for
the different server groups.

Our current legacy monitoring system is able to monitor logical disk free
space and then alert on groups of servers to specific admins. We would like
to duplicate this in SCOM.

I created a group containing Domain Controller Logical Disks. I then
assigned this group as the target for a new Unit Monitor, but when I get to
selecting the Instance, I am unable to select the wildcard option Device ID
($Target/Property[Type="MicrosoftWindowsLibrary6172210!Microsoft.Windows.LogicalDevice"]/DeviceID$).
The only wildcard options available are Device Name and ID.

Does anyone know how this can be acomplished?

Regards,
Brian

[BrianW]

Hello all, I figured this out and thought that I would share the steps with
you. We are now able to do the following:

All Domain Controllers are monitored:
< 10% free space sends a warning alert to a subset of subscribers
< 7% free space sends a critical alert to a larger subset + manager

Steps to complete:

1. Create Unit Monitor | Windows Performance Counter | Static Threshold |
Double Threshold | Double Threshold
2. Select management pack.
3. Monitor target: Windows Server 2003 Logical Disk
4. Object = LogicalDisk Counter = % Free Space Instance =
$Target/Property[Type="MicrosoftWindowsLibrary6172210!Microsoft.Windows.LogicalDevice"]/DeviceID$
5. Clear 'Include all instances for the selected couter' (Thanks to Kevin
Holman's blog for this jewel!)
6. Identify Low value and High value threshold range.
7. Configure heath settings.
8. Enable alerting and set Severity to 'Match monitor's health

Overrides:

I created an override for class Win 2003 Logical Disk 'Enabled = False'.
Then created an override for custom DC group 'Enabled = True & Alert On State
= Alert on critical and warning'.

I was then able to configure notifications for 'raised by a specific group',
raised by a specific monitor', and 'raised by a specific severity'.

Now, < 10% free space (between thresholds) shows up as a warning in active
alerts and notifies subscribers and < 7% free space (below low threshold)
shows up as critical and alerts second group.

HTH.

Regards,
Brian

Post by BrianW
I understand that by default there are logical disk free space monitors for
the different server groups.
Our current legacy monitoring system is able to monitor logical disk free
space and then alert on groups of servers to specific admins. We would like
to duplicate this in SCOM.
I created a group containing Domain Controller Logical Disks. I then
assigned this group as the target for a new Unit Monitor, but when I get to
selecting the Instance, I am unable to select the wildcard option Device ID
($Target/Property[Type="MicrosoftWindowsLibrary6172210!Microsoft.Windows.LogicalDevice"]/DeviceID$).
The only wildcard options available are Device Name and ID.
Does anyone know how this can be acomplished?
Regards,
Brian