SGI Origin 3000 General Maintenance
Routine care for the SGI Origin 3000 series (Origin 3200, 3400 and 3800), from SGI's SGI Origin 3000 Series Owner's Guide (007-4240-002) and Technical Configuration Owner's Guide (007-4311-002).[1][2] SGI let owners add and remove PCI cards in the I-brick and P-brick and disk drive modules in the D-brick. Everything else, including fans, power supplies, I-brick drives and the CD-ROM, XIO boards, cabling and the lithium battery, was for SGI's own engineers.[3][4]
Environment
[edit | edit source]| Specification | Short rack | Tall rack |
|---|---|---|
| Temperature, operating, up to 1,500 m | 5 to 35 °C | |
| Temperature, operating, 1,500 to 3,000 m | 5 to 30 °C | |
| Temperature, stored | −40 to 60 °C | |
| Humidity | 10% to 95%, non-condensing | |
| Noise | Less than 65 dBA | |
| Heat output, maximum | 4.78 kBtu per hour | 10.24 kBtu per hour |
| Airflow, front to rear | Less than 2000 cu ft/min | Less than 3200 cu ft/min |
| Clearance | 914 mm front (1,219 mm recommended), 914 mm rear, none at the sides | |
Each brick's L1 controller raises an advisory when its intake air passes 30 °C, a critical warning at 35 °C and a fault at 40 °C; with the high-altitude setting (env altitude high) the limits are 27, 31 and 35 °C.[6][7] Blanking panels must cover any empty power supply positions in the power bay.[8]
Cleaning
[edit | edit source]SGI's instructions are to unplug the system before cleaning it and to use a damp cloth, not liquid or aerosol cleaners.[4]
Powering on and off
[edit | edit source]Before powering on:[9]
- Check the cables between the PDU or PDS and the wall sockets.
- Set the power switch at the rear of each brick to 1 (on). The brick's 12V LED lights green when its L1 controller has started.
- Set the D-brick's RUN/SERVICE key switch to RUN.
- Turn on the PDU or PDS circuit breaker.
Then power up from the L2 touch display, or from a console: at the L2 prompt, r 1 s 10 pwr u powers one brick (rack 1, slot 10 in SGI's example) and pwr u the whole system; without an L2, * power up at a C-brick's L1 prompt powers up all bricks. Power down the same way with pwr d or * power down.[9][10] Each brick's display shows L1 running once the power-on starts.[9]
Fans
[edit | edit source]Every brick has three front fans, except the R-brick, which has two smaller single-speed fans. The L1 controller varies the fan speed with temperature. The fans are N+1: if one fails, the others speed up and an error is reported. SGI's guide says the fans are hot-swappable by an SGI engineer.[11] The L1 env command lists each fan's speed against a warning threshold; on SGI's example C-brick the threshold was 2160 rpm.[6]
PCI cards
[edit | edit source]PCI cards in the I-brick and P-brick are hot-pluggable: the brick stays on, and only the slot is powered down.[3] The I-brick has five 64-bit slots for 3.3 V or universal cards (three at 33 MHz, two at 33 or 66 MHz), one of them used by the Fibre Channel disk controller; the P-brick has twelve.[12] The P-brick's power board supplies about 17.5 W to each slot, though a card can draw up to 25 W; the L1 controller powers slots from the lowest number upwards until the power is used up, and prints a console message if there is not enough for every card.[12]
Disk drives
[edit | edit source]D-brick drive modules can be added or removed with the D-brick running; only the slot is powered down. The D-brick has its own 220 V supplies, separate from the power bay, and its own troubleshooting section in SGI's guide.[3][8] The two Fibre Channel drives in the I-brick are for SGI engineers to change.[3]
Memory
[edit | edit source]Memory goes in two DIMMs at a time, and the two DIMMs of a bank must be the same size. SGI's standard DIMMs serve systems of up to 128 processors; larger systems need the "premium" DIMMs with extra directory memory. Origin 3000 DIMMs do not fit the Origin 200, Origin 2000, Onyx2 or Octane.[13]
Power
[edit | edit source]- Each rack needs single-phase 200-240 V (180-254 V tolerance), or three-phase on tall racks, at 50 or 60 Hz.[5]
- The power bay's supplies run N+1. At least two supplies must be fitted at all times to provide the 48 V standby, and the PDU cables must be connected to all of the power bay's inputs.[8]
- The fault reset switch at the rear of the power bay resets the bay.[8]
Related pages
[edit | edit source]- SGI Origin 3000
- SGI Origin 3000 Troubleshooting Guide
- SGI Origin 3000 Capacitor Replacement Guide
- SGI Origin 3000 Documentation
- SGI Origin 300 General Maintenance
References
[edit | edit source]- ↑ Silicon Graphics, SGI Origin 3000 Series Owner's Guide, 007-4240-002, December 2001 (File:SGI Origin 3000 Series Owner's Guide (007-4240-002).pdf).
- ↑ Silicon Graphics, SGI Origin 3000 Series Technical Configuration Owner's Guide, 007-4311-002, January 2001 (File:SGI Origin 3000 Series Technical Configuration Owner's Guide (007-4311-002).pdf).
- ↑ 3.0 3.1 3.2 3.3 SGI, 007-4240-002, chapter 11, pp. 211-212. Maintenance by owners and by SGI engineers.
- ↑ 4.0 4.1 SGI, 007-4240-002, appendix D, pp. 298-300. Lithium battery statement and safety instructions.
- ↑ 5.0 5.1 SGI, 007-4311-002, appendix E, pp. 101-105. Short and tall rack mechanical, electrical and environmental specifications.
- ↑ 6.0 6.1 SGI, 007-4240-002, appendix B, pp. 239-241.
envcommand, example output and altitude setting. - ↑ SGI, 007-4240-002, appendix C, pp. 289-290, Table C-1. L1 temperature messages.
- ↑ 8.0 8.1 8.2 8.3 SGI, 007-4240-002, chapter 10, pp. 199-210. Power bay, power supplies, blanking panels, fault reset switch, D-brick supplies.
- ↑ 9.0 9.1 9.2 SGI, 007-4240-002, chapter 2, pp. 33-60. Preparing to power on, powering on and off from the L2 touch display or console.
- ↑ SGI, 007-4240-002, chapter 3, pp. 105-108. Operating the L1:
* power up, console mode. - ↑ SGI, 007-4240-002, chapter 1, pp. 6 and 23-24. Brick cooling and fans, RAS features.
- ↑ 12.0 12.1 SGI, 007-4240-002, appendix A, pp. 226-227. I-brick and P-brick PCI slots and power.
- ↑ SGI, 007-4240-002, chapter 4, pp. 119-120. DIMMs and memory kits.