IBM iSeries 820 Hardware Problem Analysis And Isolation

System Model, Tower,
Expansion Unit or Machine Type
HSL Cable or Connections
Models 830 and SB2 system unit Note: The HSL cable ports A0 and A1 (for loop number 256) are not on the
Network Interface Controller NIC card in position M06.
v The ″A0″ port is labeled ″1″ and is located on the HSL I/O bridge card in
position C08 of the FC 9074 base I/O tower.
v Port ″A1″ is located on the system unit frame under the NIC card in position
M06. The ″A1″ port is oriented horizontally below a cross member of the
frame.
v An internal ribbon cable connecting the Network Interface Controller (NIC)
card in position M06 to the HSL I/O bridge in position C08 of the FC 9074
base I/O tower. (The first link on HSL loop 256).
v HSL ports are on the Network Interface Controller (NIC) Card in position M06.
Models 830 and SB2 base I/O
tower (FC 9074)
v An internal ribbon cable connecting the HSL I/O bridge in position C08 to the
system unit’s Network Interface Controller (NIC) card in position M06. (The
first link on HSL loop 256).
v External HSL port on the HSL I/O bridge card in position C08.
Models 840 and SB3 system
unit/processor tower
HSL ports are on the Network Interface Controller (NIC) Card in position M17.
Models 840/SB3 System Unit with
FC 9079 Base I/O Tower
External HSL ports on the HSL I/O bridge card in position C08.
FC 5074 Expansion I/O Tower External HSL ports on the HSL I/O bridge card in position C08.
FC 5075 Expansion I/O Tower
v External HSL ports on the tower frame.
v Internal ribbon cable connecting the frame to the tower card in position CB1
FC 5078/0578 Expansion I/O
Tower
External HSL ports on the HSL I/O bridge card in position C08.
FC 5079 (1.8m expansion tower) External HSL ports on the HSL I/O bridge card in position C08.
External xSeries Server External HSL ports on the Integrated xSeries Adapter
FC 5033, FC 5034, FC 5035 SPD
migrated towers
v External HSL ports on the frame.
v An HSL interposer card inside the frame behind the external HSL ports.
v An internal ribbon cable connecting the Tower Card in position C00 to the HSL
interposer card inside the frame behind the external HSL ports.
FC 5077 SPD migrated towers
v External HSL ports on the frame.
v An HSL interposer card in position S08.
This ends the procedure.
Power down, power on instructions
Follow these steps if you accidentally pulled an HSL cable, and lost HSL connections to frames that were
in a loop.
1. From the Hardware Service Manager screen, select Packaging hardware resources.
2. Select the frame that has just accidentally lost its HSL connection and select Concurrent
Maintenance. Then, press Enter.
3. Select Power off domain to power off the tower.
4. After reconnecting the frame into the HSL loop, select Power on domain.
Analyze hardware problems 455

IBM iSeries 820 Specifications

General

Brand	IBM
Model	iSeries 820
Category	Server
Language	English