This document describes procedure to create additional disk space in the logging partition of Cisco Call Manager, by adjusting the High and Low WaterMark settings in Real Time Monitoring Tool (RTMT).
There are no specific requirements for this document .
The information in this document is based on these software and hardware versions:
Cisco Call Manager Version 10.0.1-10000-24
Cisco Real Time Monitoring Tool Version 10.0(001)
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Low WaterMark is a percentage value of the total logging disk space, post which you receive an alert , indicating that the disk space is full by the configured percentage of for Low WaterMark.
High WaterMark is a percentage value of the total logging disk space, post which the the older log files are purged.
High WaterMark Exceeded and Low WaterMark Exceeded are events which indicates the percentage of used disk space in the logging partition.
This event indicates that the percentage of used disk space in the log partition has exceeded the configured high water mark.
This event indicates that the percentage of used disk space in the log partition has exceeded the configured Low WaterMark. The threshold percentage value of both of these events could be configured in RTMT based on the requirement . By Default High WaterMark is set to 95 % of total logging partition and Low WaterMark is set to 90% of total logging partition.
At times, need arises when there is insufficient space in the Logging Partition and additional space needs to be created for certain activity in call manager to take place. During such events additional space could be created in the Logging Partition, adjusting the threshold values of High WaterMark and LowWaterMark repectively.
When the threshold value of High WaterMark is lowered it would purge the older log files and this would create additional disk space in the logging partition.
Adjust Low WaterMark
Launch RTMT and log in to the desired cluster and On the Left pane navigate to, System > Tool > Alert Central.
On the Right pane, under System Right Click LogPartitionLowWaterMarkExceeded > Set Alert/Properties.
By default, Low WaterMark is set to 90%.
Set the Low WaterMark to a lowerer value, based on your rquirement and then Click Next.
Adjust High WaterMark
Once the on the Right pane, Under System Right Click LogPartitionHighWaterMarkExceeded > Set Alert/Properties
By Default, High WaterMark is set to 95%.
Set the High WaterMark to a lowerer value, based on your rquirement and then Click Next.
The additional disk space created in the logging partition. After you adjust the High and LowWaterMarks could be verified throught the Show Status command on the CLI on the call Manager.
Before adjusting the WaterMark.
Host Name : publisher Date : Thu Jul 21, 2016 16:07:16 Time Zone : India Standard Time (Asia/Kolkata) Locale : en_US.UTF-8 Product Ver : 10.0.1.10000-24 Unified OS Version : 184.108.40.206-2