McDewey

Background Information CUCM has three main disk partitions: Disk/active: contains the current CUCM version and its configuration. • Disk/inactive: contains the previous version in case you need to switch after an upgrade for any reason. • Disk/logging: this is also called common partition which holds all the enabled log/trace files and also used to store temporarily the upgrade ISO file during upgrade. • Common partition clean-up is required in two scenarios: Log rotate is broken and logs do not get deleted leading to the logging (/common) partition to grow without bound. This can cause performance issues as the inability to logging affects the execution of different commands. 1. CUCM upgrade requires more space under common partition. Pre-Upgrade Readiness COP File validates different aspects of your cluster before the upgrade is performed, one of the modules is the Disk Space Check as CUCM upgrade requires at least 25GB of free space in the common partition. 2. Validate Common Partition Space The useful commands to start troubleshooting Common Partition space issue are: show status • show tech runtime disk • show hardware • show diskusage common sort • utils core active list • utils core inactive list • In order to validate disk space, use the show status command. The disk usage is displayed at the end of the command. <#root> admin: show status Host Name          : xxxxxxxx-cucm1 Date               : Fri Sep 29, 2023 17:20:40 Time Zone          : Central Daylight Time (America/Mexico_City) Locale             : en_US.UTF-8 Product Ver        : 12.5.1.16900-48 Unified OS Version : 7.0.0.0-4 Uptime: 17:20:42 up 141 days,  1:12,  1 user,  load average: 2.22, 0.98, 0.82 CPU Idle:   85.86%  System:   07.58%    User:   05.56% IOWAIT:   00.51%     IRQ:   00.00%    Soft:   00.51% Memory Total:        7990056K Free:         130848K