requires that the old and new cluster data directories be in the

same file system. (Tablespaces and <filename>pg_wal</filename> can be on

different file systems.)

The clonemode provides the same speed and disk space advantages but will

notleave the old cluster unusableafter theupgrade. The clone mode

also requires that the old and new data directories be in the same file

system.The clonemode is only available on certain operating systems

and file systems.

Clonemode provides the same speed and disk space advantages but

doesnotcause the old clusterto beunusableonce thenew cluster

is started. Clone modealso requires that the old and new data

directories be in the same filesystem.Thismode is only available

on certain operating systemsand file systems.

</para>

<para>