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Adjust WaterMark in RTMT of Call Manager Procedure Contents Introduction Prerequisites Requirements Components Used Background Information LogPartitionHighWaterMarkExceeded LogPartitionLowWaterMarkExceeded Procedure Adjust Low WaterMark Adjust High WaterMark Verify Troubleshoot Introduction This document describes the procedure to create additional disk space in logging partition of Cisco Call Manager with High and Low WaterMark settings. Prerequisites Requirements There are no specific requirements for this document. Components Used 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 (RTMT) 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, ensure that you understand the potential impact of any command. Background Information Tip: The information in this tech document also applies to adjust the watermark in RTMT for the Cisco IM and Presence Service Server.

Low WaterMark is a percentage value of the total logging disk space post which when you receive an alert, indicates the disk space is full by the configured percentage of Low WaterMark. High WaterMark is a percentage value of the total logging disk space post which the older log files are purged. High WaterMark Exceeded and Low WaterMark Exceeded are events that indicate the percentage of used disk space in the logging partition. LogPartitionHighWaterMarkExceeded This event indicates that the percentage of used disk space in the log partition has exceeded the configured High Watermark. LogPartitionLowWaterMarkExceeded 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 events could be configured in RTMT based on the requirement. By default, High WaterMark is set to 95% of the total logging partition and Low WaterMark is set to 90% of the total logging partition. At times, a need arises for certain activities in the call manager to take place when there is insufficient space in the Logging Partition and additional space needs to be created. During such events, additional space could be created in the Logging Partition by adjusting the threshold values of High WaterMark and LowWaterMark, respectively. When the threshold value of High WaterMark is lowered, it purges older log files, thereby creating additional disk space in the logging partition. Procedure Adjust Low WaterMark Launch RTMT, and log in to the desired cluster. 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 lower value, based on your requirement, and then click Next.

Adjust High WaterMark When 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 lower value, based on your requirement, and then click Next.

Verify The additional disk space is created in the logging partition. After you adjust the High and Low WaterMarks, it can be verified through the Show Status command on the CLI on the Call Manager. Before the WaterMark was adjusted. <#root> admin:show status 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 : 10.0.0.0-2

Uptime: 16:07:17 up 72 days, 21:01,  1 user,  load average: 0.21, 0.16, 0.11 CPU Idle:   93.06%  System:   02.40%    User:   04.29% IOWAIT:   00.25%     IRQ:   00.00%    Soft:   00.00% Memory Total:        8062096K Free:         133808K Used:        7928288K Cached:        3312040K Shared:              0K Buffers:         342228K Total            Free            Used Disk/active         22187548K        9256672K       12705464K (58%) Disk/inactive       22187548K       20884420K         176064K (1%) Disk/logging 77201424K 47443520K 25836240K (36%) After the WaterMark was adjusted. <#root> admin:show status Host Name          : publisher Date               : Thu Jul 21, 2016 16:35:48 Time Zone          : India Standard Time (Asia/Kolkata) Locale             : en_US.UTF-8 Product Ver        : 10.0.1.10000-24 Unified OS Version : 10.0.0.0-2 Uptime: 16:35:49 up 72 days, 21:29,  1 user,  load average: 0.09, 0.12, 0.16 CPU Idle:   98.61%  System:   00.88%    User:   00.51% IOWAIT:   00.00%     IRQ:   00.00%    Soft:   00.00% Memory Total:        8062096K Free:        1957460K Used:        6104636K Cached:        1477332K Shared:              0K Buffers:         360100K Total            Free            Used Disk/active         22187548K        9256660K       12705476K (58%) Disk/inactive       22187548K       20884420K         176064K (1%) Disk/logging 77201424K 54805132K 18474628K (26%) As seen in the Show Status output, the percentage value of the Used Disk/Logging partition has changed from 36% to 26%. Troubleshoot

There is currently no specific information available to troubleshoot this configuration.