Cisco StackWise Virtual This section describes the scenarios when uplink ports in a dual Supervisor are used as StackWise Virtual links: • When application hosting is enabled, and port 48 on linecard 4 is not up, it is disabled on both the active and standby chassis. • If the link is up on either the active or standby chassis on port 48 linecard 4, then the enable command is rejected. • If port 48 on linecard 4 is used as a dual-active detection (DAD) link, remove the DAD link, and configure it on another port.
• If port 48 on linecard 4 is used as a StackWise Virtual link, and the front-panel port must be enabled, remove the StackWise Virtual link on port 48 and use another port as the StackWise Virtual link. Port 48 on linecard 4 cannot be used as a StackWise Virtual or DAD link. Application Hosting on Cisco Catalyst 9500 Series Switches Cisco Catalyst 9500-High Performance Series Switches support only M2 SATA modules, SSD-240G, SSD-480G, and SSD-960 (C9k-F1-SSD-240GB). Front-panel USB is not supported. For more information, see the "M2 SATA Module" of the Interface and Hardware Components Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches) .
In Cisco IOS XE Cupertino 17.7.1, Cisco Catalyst 9500X Series Switches support application hosting on AppGigabitEthernet interfaces. Application Hosting is supported on the M2 SATA modules: SSD-240G, SSD-480G, and SSD-960 (C9k-F1-SSD-240GB). Application Hosting on Cisco Catalyst 9600 Series Switches Cisco Catalyst 9600 Series Switches support only M2 SATA modules for application hosting; front-panel USB is not supported. The following M2 SATA modules are supported: SSD-240G, SSD-480G, and SSD-960 (C9k-F2-SSD-240GB) For more information, see the "M2 SATA Module" of the Interface and Hardware Components Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9600 Switches) .
Autotransfer and Auto-Install of Apps from Internal Flash to SSD When IOx is enabled, it chooses the best available media, and starts the IOx service using that media. IOx also selects the media to run the applications at startup. When IOx is restarted and a different media is selected, all applications (only Docker applications are supported.) must be migrated to the new media, and the containers must be restored to the same state as before the change. All persistent data and volumes attached to an application must also be migrated. During a restart, IOx selects the media in the following order of precedence: 1. Harddisk 2.
Flash Flash only supports Guest Shell; no other applications are allowed. Application Hosting Application Hosting on Cisco Catalyst 9500 Series Switches Application Hosting 9