Hardware concepts

Start of changeiSeries™ 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.End of change

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Comparison of IXS, IXA and iSCSI HBA attached xSeries servers.
An IXS card is shown inside an iSeries.
 Start of changeAn IXS is a diskless PC Server with processor and memory that is installed inside an iSeries server.End of change
An IXA card is shown inside of an xSeries connected to an iSeries by a HSL cable.
 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.
An iSCSI card is shown inside of an xSeries server connected to an iSeries by an Ethernet network.
 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.
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