Dynamic attach and detach
You can dynamically attach devices to a running Red Hat® Enterprise Linux® 9.2 for IBM Z instance, for example, from z/VM®.
When a DASD is attached, Linux attempts to initialize it according to the DASD device driver configuration. You can then set the device online. You can automate setting dynamically attached devices online by using CCW hotplug events.
Attention: Do not detach a device that is still being used by Linux. Detaching devices might cause the system to hang or
crash. Ensure that you unmount a device and set it offline before you detach it.
Be careful to avoid errors when working with devices that have become available to a running Linux instance.