Portland, OR--March 25, 1997--The Peripheral Component Interconnect Special Interest Group (PCI SIG) announced that the PCI Hot-Plug specification has been made available for industry review on the PCI SIG Web site at www.pcisig.com.
The objective of the PCI Hot-Plug specification is to enable the insertion and removal of PCI adapter cards without having to shut the system down. This capability allows for several implementations, including Hot Replace, replacing adapter cards in "hot systems"; Hot Upgrade, upgrading existing adapter cards with new versions of cards and drivers; and Hot Expansion, adding previously uninstalled cards and associated driver software into the system. The adoption of the specification is important for businesses that operate mission-critical server environments, for which downtime can represent a significant cost.
The PCI Hot-Plug specification is open for review by anyone in the industry. Comments on the specification will be considered by the PCI SIG as it refines the specification, which is expected to be completed in June.
In conjunction with the PCI Hot-Plug work, the PCI SIG has developed the PCI Power Management specification to address the issues of power management and energy conservation on the PCI bus. Working in concert with the operating system, it allows expansion cards to be powered down when not in use, and powered up when in demand. The PCI Power Management specification is currently being reviewed by the PCI SIG, and is expected to be ratified and released to the industry early this summer.
The PCI SIG continues to address new requirements to the PCI local bus standard with enhancements that expand its capability, and is currently working on Vital Products Data (VPD). VPD is a way to describe information about the PCI device such as manufacturer, serial number, and warranty information. This information can be used by systems administrators for asset management and help-desk support, and will help reduce the total cost of ownership of PCI systems. Both the PCI Power Management specification and the VPD enhancement will be in the formal, member final review cycle by mid-April.
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Fort Collins, CO--March 24, 1997--Symbios Logic (Fort Collins, CO) announced their first PCI to Wide Ultra2 SCSI host adapter utilizing the Symbios Logic universal LVD transceiver technology, LVDlink. An extension of existing Symbios Logic PCI SCSI I/O solutions the SYM8951U delivers high data rates in combination with the high-performance PCI system bus.
Based on Symbios Logic's SYM53C895 Ultra2 SCSI I/O processor, the SYM8951U provides universal Low-Voltage Differential (LVD) signaling for SCSI as well as providing legacy single-ended SCSI support. The built-in LVD transceiver, LVDlink, automatically switches between Ultra SCSI 40 MBps transfers and Ultra2 SCSI 80 MBps transfers for all LVD devices on the bus.
The SYM8951U targets application storing or transporting large block-size transfers such as video production and editing, medical imaging, video on demand, and high-performance desktop multimedia markets.
The SYM8951U host adapter automatically switches modes from LVD to single-ended when single-ended devices are connected to the bus. With all LVD devices on the SCSI bus the SYM8951U automatically enters LVD mode. In single-ended mode, the SYM8951U host adapter matches the speeds of the attached SCSI devices with transfers up to 20 MBps for Fast SCSI devices or up to 40 MBps for Ultra SCSI devices.
With the plug-and-play features of PCI, the built-in utility features of SCSI Configured AutoMatically (SCAM) and SCSI bus and device configuration in the on-board FLASH BIOS, the bootable SYM8951U eliminates the need for jumpers, switches and allocating system DMAs, IRQs, or address resources. Installing the SYM8951U Ultra2 SCSI host adapter in a SCAM environment is a matter of plugging into an available PCI slot, connecting the SCSI cables and loading the operating system drivers.
The SYM8951U host adapter comes with Symbios Logic's powerful SCSI Device Management Software SDMS, which provides built-in SCAM and SCSI bus and device configuration utilities. All major operating systems, including DOS, Windows 3.1x, Windows 95, Windows NT, Novell Netware, SCO Unix Open Server, UNIXWARE, and OS/2 are supported. The new one-interrupt-per-I/O Windows 95 and NT drivers provide improved system CPU utilization. In high-performance Windows NT environments the new driver shows improvement in I/O throughput and CPU utilization over previous industry offerings. Multiple Symbios Logic host adapters save host memory resources by using only one copy of the BIOS for all adapters. The SYM8951U will also be offered as part of Symbios Logic's I2O-ready family of host adapters.
The SYM8951U PCI Ultra2 SCSI host adapter will be shipping in production volumes in June. Pricing is set at $153.87 per board in quantities of 10,000.
Fort Collins, CO
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