Storage Informer
Storage Informer

Tweaking the SMS Addon to reduce WMI Load

by on Jul.16, 2009, under Storage

Tweaking the SMS Addon to reduce WMI Load

If you have experienced WMI related issues with the SMS Addon or are worried about potential WMI related issues you might want to read this…

The SMS Addon relies on calls to the WMI service for interacting with SMS and it calls the WMI service more than you might think. For some customers it has been observed that the default frequencies of these calls coupled with the amount of data/entries (such as number of advertisements, number of collections etc.) causes a very high load on the WMI service and a subsequent crash of the service that requires a full reboot of the entire Server (not just the service). Obviously that is not an acceptable situation for a production customer, however there are 8 specific instances where the SMS Addon makes calls to the WMI service which can be tweaked to provide a potential resolution.

You won&apost see these 8 registry keys in the registry as the SMS Addon uses default values inside the SMS Addon code. You would need to generate these keys yourselves and provide values in order to override the defaults used. The list of these keys and the what they are for are as follows:

All registry keys need to be created in: HKLM\SOFTWARE\Intel\Intel(R) AMT Add-on\GEN\ folder and Dword values need to be entered in minutes. Any value but 0 is legal. There is no disable value and hence &aposdisabling&apos is achieved by setting a very high value such as 5 (2,628,000 minutes) or 10 years (5,256,000 minutes).These is the list of the scheduled WMI related operations:NewSysScanInterval used to identify new systems in SMS (discovered by SMS discovery methods like AD discovery) DeletedSysScanIntervalused to remove information about systems removed from SMS SCSSystemScanIntervalused to find new machines in SCS SystemChangeMembershipScanIntervalused to identify systems membership in groups (for system defense settings) OffLineSystemScanInterval SCSrequestScanInterval UpdatedAdvertisementsScanIntervalused for reading advertisement definitions AdvertisementChangeScanInterval used for identifying status of systems with system defense settings on advertisements Tal

URL: http://feedproxy.google.com/~r/IntelBlogs/~3/EFshBgcDjjQ/tweaking-the-sms-addon-to-reduce-wmi-load

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