Linux command
dmevent_tool 命令
文本
复制后可按需替换文件名、目录或参数。
常用示例
List registered events
dmevent_tool -l
Register device
dmevent_tool -R [device_name]
Unregister device
dmevent_tool -U [device_name]
Check monitor status
dmevent_tool -s [device_name]
说明
dmevent_tool is a utility for interacting with the device-mapper event daemon (dmeventd). It allows registering and unregistering device mapper devices for event monitoring and querying their status. The device-mapper event daemon monitors DM devices for events like failures, threshold crossings, or configuration changes. When events occur, dmeventd can trigger configured responses such as alerting or automatic repair. This tool is typically used with LVM thin provisioning, RAID, and other device-mapper-based storage configurations that benefit from event-driven monitoring.
参数
- -l, --list
- List registered devices.
- -R, --register
- Register device for monitoring.
- -U, --unregister
- Unregister device from monitoring.
- -s, --status
- Show device monitoring status.
- -h, --help
- Display help information.
FAQ
What is the dmevent_tool command used for?
dmevent_tool is a utility for interacting with the device-mapper event daemon (dmeventd). It allows registering and unregistering device mapper devices for event monitoring and querying their status. The device-mapper event daemon monitors DM devices for events like failures, threshold crossings, or configuration changes. When events occur, dmeventd can trigger configured responses such as alerting or automatic repair. This tool is typically used with LVM thin provisioning, RAID, and other device-mapper-based storage configurations that benefit from event-driven monitoring.
How do I run a basic dmevent_tool example?
Run `dmevent_tool -l` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -l, --list do in dmevent_tool?
List registered devices.