A table containing 'client data' objects for use by conforming management stations/agents, particularly during installation of this host system. Usage: For managed systems which support static rows (ie, 'read-write'), a management station (or management agent) SHALL search 'xcmGenClientDataRowStatus', to determine the appropriate value of 'xcmGenClientDataIndex' to use when allocating an existing row in the 'xcmGenClientDataTable'. Usage: For managed systems which support dynamic rows (ie, 'read-create'), a management station (or management agent) SHALL examine 'xcmGenClientDataLastIndex', to determine the appropriate value of 'xcmGenClientDataIndex' to use when creating a new row in the 'xcmGenClientDataTable'. Usage: Throughout this specification, the term 'stable storage' refers to storage which is reliable over long durations (years) and is NOT destroyed by host system reboot (eg, battery-backed DRAM is 'stable storage' - while simple DRAM is NOT 'stable storage'). Examples of valid 'stable storage' include: NVRAM, hard disk, EEPROM, etc. Usage: Conforming implementations SHALL preserve active 'client data' objects across management agent power cycles, and SHALL implement one of the following two methods: 1) The agent SHALL store 'client data' objects directly in 'stable storage'; or 2) The agent SHALL automatically checkpoint all active 'client data' objects to 'stable storage' with reasonable frequency (either due to a write to some 'client data' object, or upon expiration of a product-specific timeout). Usage: Conforming implementations MAY (optionally) support one of the following two 'checkpoint protocols': 1) A client sends a 'Set' of 'xcmGenClientDataRowStatus' to 'active(1)', to request that a 'checkpoint' be performed; 2a) An agent which supports 'rapid checkpoint', completes the checkpoint to 'stable storage', and sends a 'SetResponse' with 'noError(0)'; 2b) An agent which supports 'delayed checkpoint', changes 'xcmGenClientDataRowStatus' to 'notInService(2)', sends a 'SetResponse' with 'noError(0)', completes the checkpoint to 'stable storage', and later changes 'xcmGenClientDataRowStatus' back to 'active(1)'.