Recreate Flashlog

Hello Team,

In the document "Extending Oracle Exadata Database Machine" :

Command to re-create flashlog for X3 :

# dcli -g cell_group -l celladmin cellcli -e "drop flashlog all force"

# dcli -g cell_group -l celladmin cellcli -e "alter flashlog all"

Whereas, for X4:

# dcli -g cell_group -l celladmin cellcli -e "drop flashlog all force"

# dcli -g cell_group -l celladmin cellcli -e "create flashlog all"

I am confused why this is different with the generation of system whereas not on the cell software version.

Thank You,

Arbind Karna