iSeries Server 270 117
iSeries Server 270
– #4778 PCI RAID Disk Unit Controller
Provides support for up to 18 disk units, the required CD-ROM/DVD-RAM, and either
a feature internal tape, feature CD-ROM, or feature DVD-RAM.
• Internal Disk Units and Read Cache
– #4317 8.58 GB 10k RPM Disk Unit
– #4318 17.54 GB 10k RPM Disk Unit
– #4319 35.16 GB 10k RPM Disk Unit
– #4331 1.6 GB Read Cache Device
• Integrated Optical
– #4525 — CD-ROM or
– #4530 — DVD-RAM
• System Console/Communications Adapter
– The console on LAN option requires a dedicated LAN adapter and a #0367 feature.
– #5540 System Console on twinaxial workstation controller
#4746 PCI Twinaxial IOA
– #5544 System Console on #9771 WAN Adapter
#0367 Operations Console PCI Cable
– #5546 System Console on 100 Mbps Token Ring
#2744 PCI 100 Mbps Token-Ring IOA (Console)
– #5548 System Console on 100 Mbps Ethernet
#4838 PCI 100/10 Mbps Ethernet IOA (Console)
• Uninterruptible Power Supply (UPS)
An external UPS is recommended to protect the system unit and any external
components against utility power outages.
Card Technology
PCI architecture offers advantages in flexibility over non-AS/400e server structures. Previous
AS/400e models required input/output processors (IOPs) to be in specific slots in the system
and expansion towers. If high performance in a particular area was required, a single
input/output adapter (IOA) may have been assigned to a single IOP. This resulted in
unassigned slots in the tower, leaving valuable slots empty.
With the implementation of new PCI technologies, the Model 270 provides more flexibility in
the placement of IOPs and IOAs. This results in more efficient use of card slots, potentially
resulting in a lower cost of implementation. Increased flexibility of configuration adds a
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