I am trying to delete the one of the devices under /dev/mapper using dmsetup remove --force.

The command runs fine and the device is removed but that same device re-appears after a reboot.

The device "isw_daghjfaija_Volume0_err_target" in the below output is the one I want to get rid of.

[r...@xen2 ~]# dmsetup ls
vg0-lv0 (253, 3)
isw_daghjfaija_Volume0_err_target       (253, 2)
Xen2Volgroup00-LogVolSwap       (253, 1)
Xen2Volgroup00-LogVolRoot       (253, 0)

This device does not really exist now and it causes any LVM command to display the below error message:

/dev/mapper/isw_daghjfaija_Volume0_err_target: read failed after 0 of 2048 at 0: Input/output error



Any advice is really appreciated.

Thanks,
Vu

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