iSeries™ servers support several hardware configurations to integrate IBM® xSeries® or BladeCenter™ servers. The following table introduces the essential differences between an Integrated xSeries Server (IXS), an Integrated xSeries Adapter (IXA) attached xSeries server, and an iSCSI attached server.
| An IXS is a diskless PC Server with processor and memory that is installed inside an iSeries server.
| | An IXA is a high-speed link (HSL) bus adapter plugged into a supported xSeries server. The xSeries server appears as an HSL attached expansion unit to the iSeries server.
| | iSCSI technology attaches both diskless xSeries servers and IBM BladeCenter servers to iSeries systems using low cost, scalable Ethernet networks. There are iSCSI host bus adapters (HBAs) in the iSeries server, in each participating xSeries server, and on each participating IBM BladeCenter server. | |