LSI Logic Introduces Portfolio of Ultra3 SCSI Solutions
Feature Rich Host Controller, Host Adapter Boards and Industry Leading Bus
Expander Provide Comprehensive Ultra3 Offering
MILPITAS, Calif., June 21 /PRNewswire/ -- Continuing its rich SCSI heritage and leadership in storage I/O technology, LSI Logic Corporation (NYSE: LSI) today announced a portfolio of Ultra3 SCSI solutions for next generation desktop, workstation and server systems.
"LSI Logic is in a unique position to provide our customers a superior Ultra3 SCSI solution," said Bill Wuertz, Vice President and General Manager, LSI Logic Storage Components Division. "Our industry-leading SCSI signaling technology, advanced feature set and seamless migration path from existing SCSI product lines ensure interoperability and lower risk to market."
Feature Rich Controller with Proven LVD Technology
At the heart of its new portfolio, LSI Logic's SYM53C1010 PCI-Dual Channel Ultra3 SCSI controller is fully compliant with the Ultra 160/m SCSI initiative and provides additional features necessary to ensure robust Ultra3 system operation. To provide complete end-to-end protection of the SCSI I/O, Asynchronous Information Protection (AIP) protects all non-data phases, augmenting the cyclic redundancy check (CRC) feature of Ultra 160/m. The SYM53C1010 also provides LSI Logic's SureLINK(TM) domain validation technology. SureLINK domain validation technology varies LVD drive strength and timing characteristics of the clock signals as a test to identify marginal Ultra3 SCSI systems. To support the full bandwidth of two Ultra3 SCSI channels, the PCI interface is 64 bit/66 MHz, providing a 528 MB/s bandwidth to the host, and is fully PCI 2.2 compliant.
The SYM53C1010 controller also features improvements to LSI Logic's proven LVDlink(TM) SCSI signaling technology. These improvements include reduced skew on the receiver side, higher output levels on the driver side, and improved input capacitance in the pad layout that provides for more signal margin for the cable plant, backplane and board.
To lower the risk of getting to market and to make the transition from Ultra2 SCSI to Ultra3 SCSI as seamless as possible, the SYM53C1010 is designed to be both software and pin compatible with the industry leading Symbios SYM53C896 Ultra2 SCSI device.
"By providing additional features to the Ultra 160/m SCSI initiative, LSI Logic is enabling its customers to take full advantage of the higher performance capabilities of this technology," said Crawford Del Prete, Group Vice President, IDC Storage, Systems, and Semiconductor Research. "An enhanced feature set is critical to designing higher bandwidth products and achieving greater system manageability."
Ultra3 SCSI Host Adapter Boards
For customers seeking a complete host adapter solution for quicker time to market, LSI Logic is offering two new Ultra3 SCSI host adapter boards. To maximize overall I/O per second performance, the SYM22915 64-bit PCI to Ultra3 SCSI dual channel host adapter provides parallel channel access with the capability to separate low-performance devices from high-performance, high-capacity devices. With an aggregate throughput of up to 320 MB/s, the SYM22915 offers the highest available SCSI performance in the market.
To take advantage of the Ultra3 data path with a cost-effective single channel solution, LSI Logic offers the SYM8955U. The SYM8955U is a 64-bit PCI to Ultra3 SCSI host adapter ideal for high-performance applications needing the highest levels of signal integrity, increased cable length and connectivity. As with other Symbios host adapter boards, the SYM8955U and SYM22915 are backward compatible with Ultra2 LVD as well as the Ultra SE devices and are ideal performance upgrades to the SYM8952U and SYM22910.
SCSI Bus Expander Feature Ideal for Storage Area Network (SAN)
Applications
To expand total SCSI device connectivity, LSI Logic's new SYM53C180 Ultra3 SCSI bus expander chip enables designers to extend SCSI cable lengths without impact to SCSI protocol or software while providing electrical isolation between separate SCSI buses. This makes the SYM53C180 the perfect solution for today's SANs, especially high availability server clusters. Unlike most solutions, SCSI bus expanders from LSI Logic automatically self-calibrate to adjust for periodic variations in voltage, temperature and silicon process. The signals between buses are regenerated, reshaped and transmitted transparently to the SCSI subsystem. Without this feature, it is very difficult to take full advantage of Ultra3 SCSI's performance and distance capabilities.
SCSI Device Management Software (SDMS)
LSI Logic's System Device Management Software (SDMS) completes the Ultra3 SCSI product. Based on the time proven software package that has enabled every generation of LSI Logic SCSI solutions, SDMS is now enhanced to fully enable the advanced capabilities of the SYM53C1010 controller and Ultra3 HAB solutions. Enhancements include support for data speed increases, improved PCI bus utilization, and management of AIP and CRC for command and data transfer reliability. Another significant advancement for improving system manageability is the addition of SureLINK domain validation technology with the added level of full cable plant margining. The domain validation capability of SDMS is available as an independent application as well as integrated in the DMI 2.0-based system management solution for enterprise class implementations. The cable plant margining capability, exclusive to LSI Logic's Ultra3 solution, includes margining control on either side of the SYM53C180 expander. SDMS supports BIOS and OSV certified drivers for all major operating systems including DOS with ASPI support, Windows 95/98, Windows NT, UnixWare, SCO UNIX, OS/2, Novell NetWare, Solaris and Linux. A complete set of SCSI utilities rounds off the software solution, including DMI 2.0 based system management software for Windows NT, NetWare, UnixWare, Solaris and Linux including a standalone or snap-in DMI browser applet. |