摘要:
Systems and methods for Ethernet Passive Optical Network Over Coaxial (EPOC) power saving modes are provided. The EPOC power savings modes allow an EPOC coaxial network unit (CNU) to enter a sleep mode based on user traffic characteristics. The sleep mode may include powering down one or more module of the EPOC CNU, including radio frequency (RF) transmit/receive circuitry and associated circuitry. In embodiments, the EPOC CNU may enter sleep mode based on instructions from an optical line terminal (OLT) or based on its own determination. Embodiments further include systems and methods that allow the EPOC CNU to maintain synchronization with a servicing coaxial media converter (CMC) when it enters a sleep mode.
摘要:
Redundant Array of Inexpensive Platters (RAIP) uses data management and storage techniques and concepts from Redundant Array of Independent Disks (RAID) technology. These techniques and concepts that are used with multiple disks are incorporated into being used within a single disk drive. RAIP is used within a single disk drive having at least one platter and multiple heads. The at least one platter is utilized in the same or similar manner as at least one of the multiple disks in a redundant array of independent disks (RAID). RAIP is generally implemented by using each side of a platter of the single disk drive in the same or similar manner as each disk drive of multiple disk drives. A system and method of providing and implementing RAIP within a single disk drive is disclosed. The single disk drive is provided with at least one platter, a number of stripes located in the at least one platter for dividing storage within the at least one platter, and a number of heads communicatively coupled to the at least one platter for writing and reading data thereat. The data is stored in the at least one platter in a redundant array level, and the stripes in the at least one platter are used to provide and store the data in the redundant array level. The redundant array level may be any of various RAIP levels.
摘要:
In a data processing system, a redundant array of storage devices is provided for storing data from a host data processing system. When a selected, storage device receives a write command, the selected storage device reads old data from the logical address specified in the write command, and temporarily stores such old data in a buffer. Next, the selected storage device writes new data from the host data processing system to a location specified in the write command. Thereafter, an XOR operation is performed in the selected storage device between the new data and the old data to produce intermediate data. The intermediate data is then transferred to a second storage device within the array. Within the second storage device, old parity data is read from the media in the second storage device and placed in a buffer. Next, an XOR operation is performed in the second storage device between the intermediate data and the old parity data to produce new parity data. Finally, such new parity data is written in the second storage device. Commands for reading data, writing data, performing XOR operations, and transferring data are all generated and executed within the storage devices which comprise the redundant array of storage devices.
摘要:
Systems and methods for Ethernet Passive Optical Network Over Coaxial (EPOC) power saving modes are provided. The EPOC power savings modes allow an EPOC coaxial network unit (CNU) to enter a sleep mode based on user traffic characteristics. The sleep mode may include powering down one or more module of the EPOC CNU, including radio frequency (RF) transmit/receive circuitry and associated circuitry. In embodiments, the EPOC CNU may enter sleep mode based on instructions from an optical line terminal (OLT) or based on its own determination. Embodiments further include systems and methods that allow the EPOC CNU to maintain synchronization with a servicing coaxial media converter (CMC) when it enters a sleep mode.
摘要:
An apparatus, system, and method are disclosed for providing a redundant array of inexpensive disks (“RAID”) storage subsystem within a processor blade enclosure. A first RAID controller blade is included and configured to fit in a processor blade enclosure. At least one processor in communication with the first RAID controller blade is included. A disk enclosure blade is provided that includes a plurality of hard disk drives. The disk enclosure blade is configured to fit in the processor blade enclosure and the hard disk drives are in communication with the first RAID controller blade.
摘要:
An apparatus, system, and method are disclosed for providing a redundant array of inexpensive disks (“RAID”) storage subsystem within a processor blade enclosure. A first RAID controller blade is included and configured to fit in a processor blade enclosure. At least one processor in communication with the first RAID controller blade is included. A disk enclosure blade is provided that includes a plurality of hard disk drives. The disk enclosure blade is configured to fit in the processor blade enclosure and the hard disk drives are in communication with the first RAID controller blade.
摘要:
A cable modem termination system includes an upstream radio frequency interface having a plurality of upstream radio frequency signal inputs and a downstream radio frequency interface having a downstream radio frequency signal output. The downstream radio frequency signal output is selectively coupled to at least one of the plurality of upstream radio frequency signal inputs.
摘要:
An information handling system transfers data blocks between a host processing side having a CPU and a host memory and a local processing side having a local processing unit and a local memory. The local memory includes a DCB queue memory portion having a plurality of DCB images each image defining host and local addresses of a corresponding data transfer. The DCB images also store a default status condition representing the most likely condition of a data transfer which in the preferred embodiment is a no error condition. A data transfer status detector determines whether the default status condition is true or false. If true, the default status information relating to a corresponding data block transfer is posted on the host processing side without local processing unit intervention.
摘要:
A SCSI computer system is provided whereby a host computer gains access to a targeted but non-local peripheral device, which device or devices are individually responsive to either SCSI or non-SCSI commands, by sending SCSI commands via a SCSI bus to a connected SCSI target computer which emulates the targeted peripheral device local to the SCSI target computer, whether the targeted peripheral device is responsive to only SCSI or only non-SCSI commands, to cause the targeted peripheral device to carry out the initial SCSI commands.