Resolving name conflict with logical volumes (LVM)

In some situations, you may encounter several volumes (LVM) with same name.
In this case, you can't mount all logical volumes in same time, and you can't use vgrename "OLD NAME" "NEW NAME".
This is an easy solution to

Reboot is allowed even if mdadm is resyncing RAID members

When managing RAID with mdadm tool under GNU/Linux, you may wonder if a restart is possible when resync of members is in progress.

The answer is: YES, it is possible.

After a reboot, the system will continue resyncing members until the end, whatever the count of restart.
It is an useful information when you want continue installing/configuring your OS without having to wait until the end of resync.