(#5294) 1.8m I/O Tower<p>#5294 has space for up to 90 disk units, 28 PCI-X IOA/IOP slots and up to four removable media units. Two #9844 Base PCI IOPs are included. #5294 is equivalent to two #5094 PCI-X Expansion Towers with side covers and casters removed and placed in a 1.8m tower. </p><p>A bus adapter to provide the HSL interface to the system is included. Two to four cables must be ordered to attach to the HSL or HSL-2 ports. When ordering cables to connect to the HSL interface, optical HSL, copper HSL, copper HSL-2, or copper HSL to HSL-2 cables are required. An HSL loop uses all optical or all copper ports/cables. A copper loop can intermix I/O towers/units with copper HSL and copper HSL-2 ports. Select the appropriate cable based on the type of HSL ports to which it is being attached, and the cable length required. </p>The #5294 is a I/O expansion tower that can contain up to 90 disk units, has 28 PCI slots and has four removable media bays. <p>Each #5294 is essentially two #5094 PCI Expansion Towers, with side covers and casters removed, placed in a 1.8M rack. Each #5294 counts as two #5094s towards the system model maximums. </p><p>Two bus adapters, to provide the HSL interfaces to the system, are required with each #5294. The upper and lower enclosures (#5094s) in a #5294 are not connected internally by an HSL cable. If the #5294 is to be placed in an HSL loop (both upper and lower enclosure on same HSL loop), an HSL-2 cable is required to connect the upper and lower enclosures. An HSL loop uses all optical or all copper ports/cables. A copper loop can intermix I/O towers/units with copper HSL and copper HSL-2 ports. Select the appropriate cable based on the type of HSL ports to which it is being attached, and the cable length required. </p><p>For each #5294 ordered, a quantity of two #0694(#5094 Equivalent) specify codes will be added to the order. If a #5294 is to be shared between two systems, one #0694 must be removed from the original ordering system and added to the sharing system, using an RPO(Record Purpose Only) change. </p><p>Each of the two tower units within a #5294 fully support 45 disk units (no #5108s need be ordered). </p><p>Dual line cord capability is available for the #5294 with feature #5116. With a #5116 installed, both tower units of a #5294 will have dual line cord capability. Two additional line cords (for a total of four) must be ordered when a #5116 is installed. Plugging in the second line cord from the upper and lower units, even if to the same outlet, enables each unit's AC power modules to be redundant. For the best power protection, the first and second line cords should be attached to different power sources. </p>The 45 disk unit positions in each unit of a #5294, are in groups of 15, each group of 15 disk units is further divided into three groups of five disk units, each group of five disk units supported on a separate SCSI (LVD-SCSI) bus from a #4748/#4778/#2757/#2780/#5715/#5703 PCI Disk Unit Controller. <p>The two removable media bays of each unit within a #5294 are supported by the same #4748/#4778/#2757/#2780/#5715/#5703 PCI Disk Unit Controller which supports disk unit positions D31 thru D35) of each internal tower unit. </p><p>Attributes provided: 28 PCI slots, 90 disk unit positions, four removable media bays </p><p>Attributes required: HSL connections, two to four wall electrical outlets, at least one #0694 on the inventory records </p><p>For 9406 - 520 (5294) </p><p>Minimum required: 0<br /><br />Maximum allowed: 3 (Initial order maximum: 3 ) </p><p>OS level required: i5/OS V5R2, or later, AIX 5L for POWER V5.2 for IBM eServer, or later, Red Hat Enterprise Linux AS for POWER Version 3, or later, SUSE LINUX Enterprise Server 9 for POWER, or later </p><p>Initial Order/MES/Both/Supported: Both </p><p>CSU: Yes </p><p>Return parts MES: No </p><p>Supported on the following systems: 520, 550, 570, 595, 800, 810, 820, 825, 830, 840, 870, 890</p>
