Abstract: A trolley configured for use to carry both round and rectangular folding tables of a variety of sizes. The trolley includes a frame having a floor located adjacent a loading end of the frame. The floor includes a planar central portion bounded on each side by angled ramp portions which terminate at elevated flat portions, one of the elevated flat portions being located adjacent the loading end of the frame; and a plurality of receivers located on the frame. The trolley also includes a handle rack locatable at an end of the frame opposite the loading end of the frame. The handle rack includes a pair of rack legs, each rack leg having a handle rack mount located at a lower end of the rack leg and configured to be received by one of the receivers of the frame.

Abstract: A collapsible table has first and second tabletop portions. A pair of first side rails is attached to the first tabletop portion, and a pair of second side rails is attached to the second tabletop portion. First and second leg assemblies are pivotally connected between the first and second side rails. A pair of hinges rotatably connect the first side rails to the second side rails along a hinge axis. A serpentine central support tube includes one or more first tubular portions disposed to one side of the hinge axis toward the first tabletop portion, and one or more second tubular portions disposed to an opposing side of the hinge axis toward the second tabletop portion. The one or more first tubular portions support the first tabletop portion at its inner edge, and the one or more second tubular portions support the second tabletop portion at its inner edge.

Abstract: A trolley configured for use to carry both round and rectangular folding tables of a variety of sizes. The trolley includes a frame having a floor located adjacent a loading end of the frame. The floor includes a planar central portion bounded on each side by angled ramp portions which terminate at elevated flat portions; a plurality of receivers located on the frame; The trolley also includes a handle rack locatable at an end of the frame opposite the loading end of the frame. The handle rack includes a pair of rack legs, each rack leg having a handle rack mount located at a lower end of the rack leg and configured to be received by one of the receivers of the frame. The handle rack mounts cooperate with corresponding ones of the receivers of the frame to enable the handle rack to be mounted to the frame and selectively positioned in either an upright position relative to the frame or in a folded orientation wherein the handle rack is folded to a lowered position adjacent the frame.

Abstract: The invention discloses a data storage system and managing method thereof. The data storage system according to the invention includes N storage devices, a backup memory and a controller where N is a natural number. Each storage device has a respective write cache. Once the data storage system suffers from power failure, the backup memory still reserves data stored therein. The controller receives data transmitted from an application I/O request unit, executes a predetermined operation for the received data to generate data to be written, transmits the data to be written to the write caches of the storage devices, duplicates the data to be written into the backup memory, and labels the duplicated data in the backup memory as being valid in response to a writing confirm message sent from the storage devices.

Abstract: The invention discloses a data storage system and managing method thereof. The data storage system according to the invention includes N storage devices, a backup memory and a controller where N is a natural number. Each storage device has a respective write cache. Once the data storage system suffers from power failure, the backup memory still reserves data stored therein. The controller receives data transmitted from an application I/O request unit, executes a predetermined operation for the received data to generate data to be written, transmits the data to be written to the write caches of the storage devices, duplicates the data to be written into the backup memory, and labels the duplicated data in the backup memory as being valid in response to a writing confirm message sent from the storage devices.

Abstract: The invention discloses a data storage system and a control method thereof. The data storage system according to the invention includes N groups of storage devices, where N is an integer larger than 1. The invention is to judge if the use information of one of the batches of data satisfies the set of condition thresholds relative to the group of storage devices where said one batch of data is stored, and if NO, to re-allocate said one batch of data to one of the group of storage devices whose condition thresholds are satisfied by the use information of said one batch of data and to update the virtual drive locations of said one batch of data mapping the logical locations of the storage devices.

Abstract: The invention discloses a data storage system and a control method thereof. The data storage system according to the invention includes N groups of storage devices, where N is an integer larger than 1. The invention is to judge if the use information of one of the batches of data satisfies the set of condition thresholds relative to the group of storage devices where said one batch of data is stored, and if NO, to re-allocate said one batch of data to one of the group of storage devices whose condition thresholds are satisfied by the use information of said one batch of data and to update the virtual drive locations of said one batch of data mapping the logical locations of the storage devices.

Abstract: The invention discloses a data storage system and a synchronizing method for consistency thereof, especially for the data storage system specified in RAID 5 architecture. The data storage system according to the invention includes N storage devices, where N is an integer equal to or larger than 3. The synchronizing method according to the invention performs writing commands for the designated storage device among the N storage devices, and reading commands for the other (N?1) storage devices, to reduce synchronization time of the data storage system.