It is a command using which we can do low level logical volume management. It comes from “device-mapper-1.02.53” package. Path: /sbin/dmsetup
Examples:
1. To list the device mapper devices
| $ dmsetup ls |
2. To get information about any DM device
| $ dmsetup info /dev/VG00/LV00 |
3. To get DM device info in column wise
| $ dmsetup info -c /dev/VG00/LV00 $ dmsetup info -C /dev/VG00/LV00 |
4. To list the DM device dependencies
| $ dmsetup deps /dev/VG00/LV00 |
5. To get the status of a DM device
| $ dmsetup status /dev/VG00/LV00 |
6. To destroy the inactive table for a device
| $ dmsetup clear /dev/VG00/LV00 |
7. To send message to target.
| $ dmsetup device_name sector message $ dmsetup /dev/VG00/LV00 0 “My Logical device” |
8. To remove a device
| $ dmsetup remove /dev/VG00/LV00 |
9. To remove all the devices
| $ dmsetup remove_all |
10. To rename the device
| $ dmsetup /dev/VG00/LV00 /dev/VG00/LV04 |
11. To suspend a device
| $ dmsetup suspend –nolockfs /dev/VG00/LV00 $ dmsetup suspend –noflush /dev/VG00/LV00 |
12. To un-suspend a device
| $ dmsetup resume /dev/VG00/LV00 |
13. To output the table for a device
| $ dmsetup table /dev/VG00/LV00 |
14. To get the dmsetup version info
| $ dmsetup version |
15. To display the help information
| $ dmsetup -h |
One thought on “what is dmsetup command with its examples”
This comment has been removed by the author.