Config.Sys | Black Box SCSI-2 LVD instruction

ULTRA2 LVD SCSI HOST ADAPTER

/X: or /x:—Use this option to exclude particular CD-ROM drives from having their I/O handled by INICD.SYS. Excluded CD-ROM drives are identified by specifying the host adapter, target ID, and LUN (logical unit number). These values are separated by a colon. Groups of CD-ROM drives can also be identified. Examples of the different ways CD-ROM drives can be excluded:

•	/X0:1:2	This will exclude the drive on SCSI Host Adapter 0 (that is, the
		Adapter on the PCI bus that the motherboard has designated
		number zero) whose target ID is 1 and whose LUN is 2.
•	/X0:2	This will exclude the drives on SCSI Host Adapter 0 whose target
		ID is 2, no matter what LUN they have.
•	/X0	This will exclude all of the drives on SCSI Host Adapter 0.

When DOSSETUP installs INICD.SYS, it will add command lines like those shown below to your CONFIG.SYS and AUTOEXEC.BAT files. (These examples assume that the Adapter drivers have been installed in the “C:\INIASPI” directory. The device name must be exactly the same in both the CONFIG.SYS and AUTOEXEC.BAT entries.)

CONFIG.SYS:

DEVICEHIGH=C:\INIASPI\ASPIA100.SYS

DEVICEHIGH=C:\INIASPI\INICD.SYS /D:INICD001

The first line loads the ASPI Manager and the second line loads the CD-ROM driver, specifying the device name “INICD001” for the CD-ROM drive.

AUTOEXEC.BAT:

C :\INIASPI\MSCDEX /D:INICD001

This line loads the Microsoft supplied MSCDEX.EXE driver, instructing it to attach to the CD-ROM drive “INICD001.” SETUP copies MSCDEX to the INIASPI directory during installation.

SCSI-2 LVD specifications

The Black Box SCSI-2 LVD (Low Voltage Differential) represents a significant advancement in data storage and connectivity technology, particularly in environments requiring high performance and reliability. As a variant of the SCSI (Small Computer System Interface) standard, it is optimized for faster data communication, essential for modern computing needs.

One of the main features of SCSI-2 LVD is its capability to handle increased data transfer speeds compared to its predecessors. It supports a maximum data transfer rate of up to 80 MB/s, which is double that of the original SCSI-2 single-ended signaling. This increase in speed is largely due to the differential signaling that LVD employs, allowing for reduced electromagnetic interference and extended cable lengths while maintaining signal integrity. The technology effectively converts the SCSI bus into a more robust system that can accommodate various devices without compromising performance.

The SCSI-2 LVD standard is backward compatible, meaning that it can interface with older SCSI devices, albeit at reduced speeds. This compatibility is significant for users looking to upgrade their systems without discarding existing hardware. This makes SCSI-2 LVD an attractive choice for enterprise environments where legacy systems are common.

Another key characteristic is the flexible cabling options provided by SCSI-2 LVD. It can support cable lengths of up to 12 meters, which is beneficial for large data center configurations where space between devices can be substantial. This extended range does not typically come at the expense of performance, ensuring that data integrity remains high, even over longer distances.

In terms of technology, LVD employs lower voltage levels, which not only contributes to greater power efficiency but also minimizes heat generation in devices. This is particularly crucial in data centers where temperature management can impact hardware longevity and reliability. The combination of lower voltage use and differential signaling makes SCSI-2 LVD well-suited for high-density environments.

Error correction and handshaking features are also integral to SCSI-2 LVD, enhancing its robustness against data loss during transmission. These characteristics make it a reliable choice for applications requiring consistent and high-speed data access, such as server arrays and high-performance computing tasks.

Overall, Black Box SCSI-2 LVD stands out due to its impressive speed, compatibility, and extensive cabling options, positioning it as a reliable solution for demanding data environments. It effectively bridges the gap between legacy systems and modern technology, ensuring that users can optimize their data handling capabilities without significant disruption.