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SGI Onyx 300 General Maintenance

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SGI Onyx 300 compute module (User's Guide Figure 1-15)
Onyx 300 compute module from the front, with its L1 display, and from the rear, with the NUMAlink and XIO ports (SGI User's Guide, Figure 1-15)

Routine care and power procedures for the SGI Onyx 300, from SGI's SGI Onyx 300 Graphics System User's Guide (007-4509-002). The compute module's fans, memory, disks, PCI cards and power supply are handled as on the SGI Origin 300; see SGI Origin 300 General Maintenance for those procedures.

Safety

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  • The system runs from 200–240 V AC. Switch equipment off before connecting or disconnecting power cords.[1]
  • Racks joined by NUMAlink or Xtown2 cables must not differ in ground potential by more than 0.25 V; SGI warns of severe damage. Feed the graphics module outlets and the PDU from the same breaker box.[1]
  • Use two people to lift the 24-inch SuperWide monitors.[1] The InfiniteReality graphics module weighs 98 kg and a graphics rack up to 385 kg.[2]
  • SGI warns that the lithium battery can explode if replaced with the wrong type.[3]

Environment

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Onyx 300 environmental limits (SGI User's Guide, Table A-1)
Item Limit
Operating temperature, up to 1500 m 5 to 35 °C
Operating temperature, 1500 to 3000 m 5 to 30 °C
Non-operating temperature −40 to 60 °C
Humidity 10% to 95%, non-condensing
Altitude, operating Up to 3000 m

[2] The L1 controllers post advisory, critical and fault messages when the inlet air passes 30, 35 and 40 °C (27, 31 and 35 °C at the high-altitude setting).[4]

Powering on

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Prepare the system first:[1]

  1. Check the power cables: each graphics module to its own wall outlet; the power bay (if fitted) to the DC-powered NUMAlink module, PCI expansion modules and L2 controller; the PDU to the compute modules, AC-powered NUMAlink module, USB hub, TP900 modules, L2 controller supply, power bay and power strip; and the PDU to the wall.
  2. Check the USB cables from the L2 controller to the graphics modules, the NUMAlink module (or the compute modules directly, in a base system) and the USB hub.
  3. Set the rear switches of any DC-powered NUMAlink module and PCI expansion modules to On. The compute modules and an AC-powered NUMAlink module have no switch; their L1 controllers start when the PDU breaker is on.
  4. Set the graphics module's rear switch last, after the steps above; its L1 starts as soon as the switch is on, because it does not plug into the PDU.

From the system console

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  1. Set monitor voltage switches and plug the monitors in.
  2. Turn on the PDU circuit breaker, then the graphics module's power switch.
  3. Check that every L1 display reads L1 running.
  4. Open a session to the L2 controller from the console, and type cfg to list the modules it can see. A module missing from the list will not power on; check that its L1 is running and its cable is connected.
  5. Type pwr u to power the whole system, or r 1 s 18 pwr u for one module (rack 1, unit 18).
  6. Type ctrl d to send the keyboard to the system console, and at the System Maintenance Menu choose option 1, Start System.

[1]

With the power buttons

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  1. Turn on the PDU breaker, the graphics module switches and any TP900 switches, and check for L1 running.
  2. Press the front power buttons in this order: PCI expansion and graphics modules, then the NUMAlink module, then the compute modules, starting with the global master, which is the lowest compute module in the rack.
  3. Choose Start System at the System Maintenance Menu.

[1]

Powering off

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SGI recommends powering off only for maintenance or repair.[1]

  1. Shut IRIX down with init 0.
  2. Type ctrl t to reach the L2 prompt and type pwr d (or r 1 s 18 pwr d for one module). Each module's L1 display then reads Powered Down; the L1 controllers stay powered.
  3. Turn off TP900 modules at their own switches.
  4. To power off the L1 of a graphics module, DC-powered NUMAlink module or PCI expansion module, set its rear switch to Off. To power off the L1 of a compute module or AC-powered NUMAlink module, unplug it from the PDU.

With the power buttons, the modules can be switched off in any order after IRIX has been shut down.[1]

Disk drives

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Each compute module holds one or two sled-mounted Ultra3 SCSI drives behind the bezel door. SGI listed an 18 GB drive, part 013-3485-00x, a 73 GB drive, part 013-3486-00x, and a blank, part 9470464.[1] The procedure is the same as on the Origin 300.

Monitoring

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SGI's Embedded Support Partner (ESP), part of IRIX, records system events, configuration changes and failures and can send notifications.[1] The L1 env and log commands show the state and history of each module.[5]

Graphics module

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The graphics module has its own power supply on the front of the midplane and plugs into a 220 V outlet outside the rack.[6] Its rear power switch, at lower left, powers its L1 controller.[1] SGI's Onyx 300 guide gives no procedures for parts inside it. On the InfiniteReality boards of the Onyx 3000 G-brick, SGI notes that the 68-pin connectors on the RM boards are for calligraphic lights and are not SCSI connectors.[7]

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References

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  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 SGI, 007-4509-002, chapter 2, pp. 67–101. Safety, monitor, powering on and off at the console and with the power buttons, ESP, disk drives.
  2. ↑ 2.0 2.1 SGI, 007-4509-002, appendix A, pp. 126–128, Tables A-1 to A-3. Environment, rack and graphics module specifications.
  3. ↑ SGI, 007-4509-002, appendix C, p. 155. Lithium battery statement.
  4. ↑ SGI, 007-4509-002, chapter 4, pp. 120–121, Table 4-2. L1 temperature messages.
  5. ↑ Silicon Graphics, SGI L1 and L2 Controller Software User's Guide, 007-3938-006, chapter 3, pp. 66–78 (File:SGI L1 and L2 Controller Software User's Guide (007-3938-006).pdf).
  6. ↑ Silicon Graphics, SGI Onyx 300 Graphics System User's Guide, 007-4509-002, May 2002, chapter 1, pp. 10–19 (File:SGI Onyx 300 Graphics System User's Guide (007-4509-002).pdf). InfiniteReality graphics module rear panel and power supply.
  7. ↑ Silicon Graphics, SGI Onyx 3000 Series Graphics System Hardware Owner's Guide, 007-4264-002, November 2001, chapter 2, p. 40 (File:SGI Onyx 3000 Series Graphics System Hardware Owner's Guide (007-4264-002).pdf).


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