Tivoli Header
Resource Model Reference
This indication is sent when there is a high work item shortage, but bytes per
second on the server are not exceeding the threshold, and bytes per second on
the redirector are exceeding the threshold. This affects the percentage
utilization of the network segment.
The indication has the following attributes:
- WorkItemShortages
- The number of times that work items cannot be allocated to service
incoming requests to the server
- RedirectorBPS
- The number of bytes per second transferring through the redirector
- CurrentBandWidth
- The bandwidth of the network interface card
- PercentNetworkUtil
- The percentage of network utilization on the segment
- NetworkSegment
- The identity of the network segment being analyzed (Key attribute)
The indication is generated when the following thresholds are
exceeded:
| Threshold
| Description
| Default
|
| High Percent Bytes Per Second (HighPercentBytesSec)
|
To test for a high amount of bytes per second, a dynamic threshold value needs
to be created based on the current bandwidth of the network interface
card. Because there will be an internal dynamic calculation, the
threshold value is a percentile that indicates what percentage of the
bandwidth is considered too high. For example: 830 KBPS is
considered high for 10 MB ethernet networks. This value is about 8
percent. The bytes per second through the redirector are greater than
the number of bytes per second. This number is reached by multiplying
the current bandwidth with this threshold, and dividing the result by
100.
| 9
|
| High Percent Utilization (HighPercentUtilization)
|
This threshold determines at what point the network utilization of the
internal segment is too high.
| 40
|
| High Work Item Shortages (HighWorkItemShortages)
|
This occurs when no work item is available, or no work item can be allocated
to service the incoming request. A work item is used when the server
service receives a request. HighWorkItemShortages indicates that the
initial work items or maximum work items parameters may need tuning.
| 10
|
The following table shows the default settings for this indication:
| Setting
| Default
|
| Send indications to Tivoli Enterprise Console
| Yes
|
| Send indications to Tivoli Business Systems Manager
| No
|
| Occurrences
| 6
|
| Holes
| 1
|
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