LSI SAS2008 IO controller's Fusion-MPT 2.0 architecture can achieve more than 320,000 I/Os per second
MD2 low profile form-factor design
The SAS/SATA technology offers a performance improvement over traditional SCSI connections. Serial Attached SCSI (SAS) and Serial ATA (SATA) are point-to-point serial peripheral interfaces in which controllers are linked directly to disk drives. This technology supports full-duplex signal transmission up to 6 Gb/s. SAS devices can communicate with both SAS and SATA devices. A key difference between SAS and SATA devices is, that SAS devices can have two data ports, of which each resides in a different SAS domain. This enables complete failover redundancy. If one path fails, there is still communication along a separate and independent path.The PSAS CP200i, dual port, host bus adapter provides high performance connectivity for internal HDD and SSD. The PSAS CP200i provides 8 lanes of 6 Gb/s SAS connectivity to 8 lanes of PCI Express 2.0 5 Gb/s performance to eliminate bottlenecks. Performance is based on the LSISAS2008 IO controller that highly integrates the enhancements in PCI Express and SAS technology. The HBA supports up to 126 SAS 2.0 compliant devices.ThePSAS CP200i has two (x4) internal mini-SAS connectors (SFF8087) enabling a low profile solution that can achieve over 320,000 IOPs. Automatic speed negotiation for SAS and SATA data transfer rates of 1.5, 3 and 6 Gb/s per lane assures legacy compatibility while the systems can benefit from T-10 protection information model for early detection of and recovery from data corruption, and spread spectrum clocking (SSC) for minimal EMI.