An Emergency Engineering Binary (EEB) is no longer available to disable excessive disk activity alerts sent from NetBackup Appliances.

  • Modified Date:
  • Article ID:000017654


The NetBackup Appliances 2.5.2 release update includes monitoring of disk activity. The purpose of this update is to assist in capacity planning, both near and long term. However, thresholds were not properly set and Symantec has received notifications on systems that are operating normally. This has led to unnecessary confusion and inconvenience for administrators.

Error Message

Example message:

Appliance is seeing a high disk IO service time at this moment. There are <10> backup jobs running currently, and a high disk service time may mean a bottleneck at disk level. You can ignore this message if response time for backups is acceptable.
This e-mail notification can be acknowledged from CLISH: Main->Settings->Alerts AcknowledgeErrors


Having a set of messages that should be ignored can lead to confusion.  To clarify the user experience, an EEB (Emergency Engineering Binary) has been attached to this document which, when installed, will disable these messages.  Symantec Corporation is in the process of working with performance numbers to calibrate where more appropriate thresholds should be.  Alerts will be re-enabled in a future release update after well-defined, useful calibration points have been set.

About this EEB:
This EEB is designed to turn off this monitoring feature and stop the generation of spurious alerts in the short term until such time as Symantec calibrates appropriate thresholds.  At that time, this feature will be re-enabled in a future release update.

Instructions for installing this EEB can be found in the Related Article linked below.

Note: This hotfix is no longer publicly available, as all of its fixes are included in the NetBackup Appliances 2.5.3 Release Update.  If this issue is experienced in a NetBackup Appliances 2.5.x environment, the supported resolution is to apply the latest maintenance release OR upgrade to NetBackup Appliances 2.6 or above.


Applies To

NetBackup 5200/5220 Appliances 2.5.2

Terms of use for this information are found in Legal Notices.



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