here is the command

ALTER DATABASE r123

SET READ_WRITE

*****************************************

here is the full erro message :

Msg 5105, Niveau 16, État 4, Ligne 1

Device activation error. The physical file name 'G:\data_prod\rd_prod1.mdf' may be incorrect.

Msg 5105, Niveau 16, État 4, Ligne 1

Device activation error. The physical file name 'G:\index\rd_prod1_1.ndf' may be incorrect.

Msg 5105, Niveau 16, État 9, Ligne 1

Device activation error. The physical file name 'G:\index\rd_prod1_1.ndf' may be incorrect.

Msg 5105, Niveau 16, État 4, Ligne 1

Device activation error. The physical file name 'G:\logs\rd_prod1_log.ldf' may be incorrect.

Device activation error. The physical file name 'G:\logs\rd_prod1_log.ldf' may be incorrect.

Msg 5181, Niveau 16, État 5, Ligne 1

Could not restart database 'rdprm_prod12'. Reverting back to old status.

Msg 5069, Niveau 16, État 1, Ligne 1

ALTER DATABASE statement failed.