In today's marketplace, the cost per Terabyte of disks with EIDE interfacesis about a third that of disks with SCSI. Hence, three times as many particlephysics events could be put online with EIDE. The modern EIDE interfaceincludes many of the performance features that appeared earlier in SCSI. EIDEbus speeds approach 33 Megabytes/s and need only be shared between two disksrather than seven disks. The internal I/O rate of very fast (and expensive)SCSI disks is only 50 per cent greater than EIDE disks. Hence, two EIDE diskswhose combined cost is much less than one very fast SCSI disk can actually givemore data throughput due to the advantage of multiple spindles and headactuators. We explore the use of 12 and 16 Gigabyte EIDE disks with motherboardand PCI bus card interfaces on a number of operating systems and CPUs. Theseinclude Red Hat Linux and Windows 95/98 on a Pentium, MacOS and Apple'sRhapsody/NeXT/UNIX on a PowerPC, and Sun Solaris on a UltraSparc 10workstation.
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机译：在当今市场上，具有EIDE接口的磁盘的每TB成本约为具有SCSI的磁盘的三分之一。因此，使用EIDE可以将在线的粒子物理学事件数量增加三倍。现代的EIDE界面包括许多SCSI早期出现的性能功能。 EIDEbus速度接近33兆字节/秒，仅需要在两个磁盘之间共享，而不是七个磁盘。快速（且昂贵）的SCSI磁盘的内部I / O率仅比EIDE磁盘高50％。因此，两个EIDE磁盘的总成本远低于一个非常快的SCSI磁盘，由于多个主轴和磁头驱动器的优势，它们实际上可以提供更多的数据吞吐量。我们探讨了在许多操作系统和CPU上将12和16 GB的EIDE磁盘与主板和PCI总线卡接口配合使用的情况。这些包括在Pentium上的Red Hat Linux和Windows 95/98，在PowerPC上的MacOS和Apple的Rhapsody / NeXT / UNIX，以及在UltraSparc 10工作站上的Sun Solaris。
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