Only HDDs provided by AMX can be used as replacements in MMS servers, and in order to replace a HDD in an MMS server, the drive must be installed and authenticated according to the steps outlined in this document. • The MMS-01S, MMS-02S, MMS-04S and MMS-12S servers all utilize 250GB hard drives, and require the MMS-HDD250G 250GB drive (FG 2178-250) for replacements. • The MMS-900 server utilizes 300GB hard drives, and requires the MMS-HDD300G 300GB drive (FG 2178-300) for replacements. There are