The reliability of SAS

Multi-master (initiators) model has long been adopted by the enterprise computing environment, that is, multiple hosts or host bus adapter (HBA) - or both - to provide hard drive access, ensure that appeared in one device failure to continue to access the data. However, under the technical configuration in parallel using multiple host can not eliminate access blocked by Ying Pan's single point of failure. The use of dual-port SAS can use to build high availability of the hard drive system, eliminating any single point of failure.

Another use of SAS to improve system fault tolerance approach is to use the extender to connect multiple drives to multiple host servers, thereby maintaining the concurrent operation of many hard drives. Command down to a communication link, the data link through another connection back to further increase the system's fault tolerance.

Using SAS expander function, combined with dual port SAS drives and dual-port adapter with SATA hard drive, users can easily design for maximum fault-tolerant redundant system. 2.5-inch dual-port SAS drives with a standard 3.5-inch hard drive can be realized with full fault-tolerant system design, in the calculation of higher and higher density applications calmly deal with new technical challenges. This scalable and reliable connectivity structure can be used to support multi-node cluster formation of enterprise-level topology, to achieve the critical mission critical applications in Automated failover and load balancing.







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HD DVD supports Dolby TrueHD New Firmware

HD DVD player last week, set-top box manufacturer has released a Firmware update, joined the TrueHD 5.1 audio support. This final version 2.0 firmware to decode Dolby TrueHD audio, which is a maximum code rate of 18Mbps lossless audio formats. TrueHD from Dolby Labs technology, support up to 8-channel, HD DVD set-top box is also essential functions of the player.

High-definition disc players by the following two methods to connect to a compatible A / V amplifier on: through independent analog audio input / output channels or through the HDMI / HDMI 1.3 interface. Fully supports HDMI 1.3 A / V equipment transfer between the Dolby TrueHD. However, TrueHD is actually the CD content and technology between the player itself, it supports 7.1-channel audio input of home audio equipment can take advantage of this technology.









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