This appendix summarizes technical information and operational limits for the fibre products. Topics covered are:
Table A-1 gives the heights of the various enclosures that install in the fibre channel rack, where 1U = 1.75 inches (4.45 cm).
Component | Number of Us | Inches | Centimeters |
|---|---|---|---|
39 U | 68.25 | 173.35 | |
3.5 U | 6.125 | 15.56 | |
1 U | 1.75 | 4.45 | |
Fibre channel RAID enclosure | 6.5 U | 11.375 | 28.9 |
RAID enclosure with standby power supply (SPS) in rack | 7.5 U | 13.125 | 33.33 |
 | Caution: The operating limits for temperature and humidity must not be exceeded inside the closed rack in which a fibre enclosure is mounted. Mounting fibre equipment in a rack directly above or below an enclosure does not restrict air flow to an enclosure because air flows through it from front to back. |
Before installing the fibre channel rack, make sure the site meets the power, thermal, and cabling requirements for the fibre rack and its enclosures. See Table A-6 for specific fibre channel rack information.
FibreVault deskside tower systems have essentially the same power requirements and technical specifications as the FibreVault enclosures in a rack system. Use the technical information in Table A-2 for all questions regarding the deskside FibreVault.
To determine an enclosure's power requirements, always use the power rating that is on the label on the chassis as the final authority. This rating is the maximum power required for a fully loaded chassis.
The input current, power (VA), and dissipation per enclosure are based on the maximum capability of the power supplies and cooling system to provide internal regulated power. Typical values may be less, depending on the number and manufacturer of disk drives.
A failure of one of the two power supplies in the enclosure results in the remaining supply and cord supporting the full load. The FC rackmount cabinet's AC power distribution can handle these values for the number of enclosures that you will interconnect. The site must also have main branch AC distribution that can handle these values.
The ambient temperature specification is measured at the enclosure's front door inlet. The site must have air conditioning of the correct size and placement to maintain the specified ambient temperature range. The air conditioning must be able to handle the BTU requirements of the enclosure(s).
Table A-2 lists specifications for the FibreVault enclosure. Note that these specifications are virtually identical for the deskside (stand-alone) FibreVault enclosure.
Table A-2. FibreVault Enclosure Technical Specifications
Classification | Specification | Value |
|---|---|---|
AC and current | AC line voltage | 100 to 240 VAC single phase (47 to 63 Hz) |
| AC line current | 4.0 amps maximum at 100 VAC |
| Input power | 392 watts maximum (305 watts average) |
| Inrush current | 50.0 amps maximum for 0.5 line cycles (per supply) |
| AC circuit breaker | 8 amp (thermal) |
| AC inlet type | IEC320-C14 appliance coupler |
| Drive module power | 25 watts per bay maximum |
Operational limits | Ambient temperatures | 10˚C to 40˚C (50˚F to 104˚F) |
| Temperature gradient | 10˚C per hour (50˚F per hour) |
| Relative humidity | 20% to 80% noncondensing |
| Max ambient temperatures at higher elevations | 40˚C (104˚F) at 2,438 m (8,000 ft) 37˚C (98.6˚F) at 3,050 m (10,000 ft) |
| Heat dissipation | 1411 x 103 J/hr (1,340 BTU/hr) maximum |
Non-operating limits | Ambient temps | –40˚C to 65˚C (–40˚F to 149˚F) |
| Temp gradient | 24˚C/hr (43.2˚F/hr) |
| Relative humidity | 10% to 90% noncondensing |
| Elevation | 7,625 m (25,000 ft) |
Dimensions | Height | 15.4 cm (6.06 in.) 3.5U (NEMA units) |
| Width | 44.5 cm (17.5 in.) |
| Depth | 63.27 cm (24.9 in.) front door to back of fan pack |
Weights | Minimum weight | 26.4 kg (58 lbs) without redundant components |
| Maximum weight | 35.5 kg (78 lbs) in high-availability configuration |
Table A-3 lists specifications for the stand-alone deskside tower version of the FibreVault. All environmental operating parameters are the same as those for the rackmounted FibreVault. Height, weight, and dimensions are the primary differences between the two products. Most other specifications are the same.
Table A-3. Deskside FibreVault Enclosure Technical Specifications
Classification | Specification | Value |
|---|---|---|
AC and current | AC line voltage | 100 to 240 VAC single phase (47 to 63 Hz) |
| AC circuit breaker | 8 amps (thermal) |
| AC inlet type | IEC320-C14 appliance coupler (3 outlets) |
Dimensions | Tower height | 67.95 cm (26.75 in.) |
| Tower width without anti-tip legs | 26.67 cm (10.5 in.) |
| Depth | 74.7 cm (29.5 in) front door to back of unit |
Weights | Maximum weight | 60.0 kg (132 lbs) fully configured |
| Minimum weight | 50.1 kg (112 lbs) minimum configuration |
Table A-4 lists specifications for the fibre channel RAID enclosure.
Table A-4. Fibre Channel RAID Enclosure Technical Specifications
Classification | Specification | Value/Type |
|---|---|---|
AC and current | AC line voltage | 100 to 240 VAC single phase (47 to 63 Hz) |
| AC line current | 8.0 amps maximum at 100 volts |
| Input power | 700 watts maximum (560 watts average) |
| Inrush current | 50.0 amps maximum for 0.5 line cycle (per supply) |
| AC circuit breaker | 12 amps (thermal) in each power supply |
| AC inlet | IEC320-C14 appliance coupler |
| Drive module power | 25 watts per bay maximum |
Operational limits | Ambient temperatures | 10˚C to 40˚C (50˚F to 104˚F) |
| Temperature gradient | 10˚C per hour (50˚F per hour) |
| Relative humidity | 20% to 80% noncondensing |
| Max operational ambient temperatures at higher elevations | 40˚C (104˚F) at 2,438 m (8,000 ft) 37˚C (98.6˚F) at 3,050 m (10,000 ft) |
| Heat dissipation | 2520 x 103 J/hr (2,390 BTU/hr) maximum |
Non-operating limits | Ambient temperature | –40˚C to 65˚C (–40˚F to 149˚F) |
| Temperature gradient | 24˚C/hr (43.2˚F/hr) |
| Relative humidity | 10% to 90% noncondensing |
| Elevation | 7,625 m (25,000 ft) |
Dimensions | Height | 28.59 cm (11.25 in.) 6.5U (NEMA units) |
| Width | 44.5 cm (17.5 in.) |
| Depth | 70.02 cm (27.57 in.) front door to drive fan pack |
Weights | Minimum weight | 41.4 kg (91 lbs) |
| Maximum weight | 52 kg (114 lbs) |
The deskside fibre channel RAID tower houses one fibre channel RAID (DPE) and one RAID expansion FibreVault (DAE). It may contain as few as five or as many as 20 fibre disk drives. All figures cited are maximum estimates unless otherwise specified below in Table A-5.
Table A-5. Fibre Channel RAID Deskside Tower Technical Specifications
Classification | Specification | Value/Type |
|---|---|---|
AC and current | AC line voltage | 100 to 240 VAC single phase (47 to 63 Hz) |
| AC line current | 12.0 amps maximum at 100 volts |
| Input power | 1,200 watts maximum (865 watts average) |
| Inrush current | 80.0 amps maximum for 0.5 line cycle |
| AC circuit breaker | 15 amps (thermal) at deskside AC inlet (PDU) |
| AC inlet | IEC320-C14 appliance coupler |
| Drive module power | 25 watts per bay maximum |
Operational limits | Ambient temperatures | 10˚C to 40˚C (50˚F to 104˚F) |
| Temperature gradient | 10˚C per hour (50˚F per hour) |
| Relative humidity | 20% to 80% noncondensing |
| Max operational ambient temperatures at higher elevations | 40˚C (104˚F) at 2,438 m (8,000 ft) 37˚C (98.6˚F) at 3,050 m (10,000 ft) |
| Heat dissipation | 3,920 x 103 J/hr (3,710 BTU/hr) maximum |
Non-operating limits | Ambient temperature | –40˚C to 65˚C (–40˚F to 149˚F) |
| Temperature gradient | 24˚C/hr (43.2˚F/hr) |
| Relative humidity | 10% to 90% noncondensing |
| Elevation | 7,625 m (25,000 ft) |
Dimensions | Height | 68 cm (26.8 in.) |
| Width | 52.1 cm (20.6 in.) |
| Depth | 74.7 cm (27.57 in.) front door to drive fan pack |
| Min. service clearances | 30.3 cm (1 ft.) front, 60.6 cm (2 ft.) rear |
Weights | Minimum weight | 76.5 kg (168.6 lbs) with all disks, LCCs, SPSs, and power supplies removed |
| Maximum weight |
Table A-6 lists specifications for the fibre channel rack.
Table A-6. Fibre Channel Rack Specifications
Classification | Specification | Value |
|---|---|---|
AC power requirements | Cabinet voltage | 200 VAC to 240 VAC, single-phase 47 Hz to 63 Hz |
| Current draw per enclosure @200VAC | 2.3 amps per FibreVault or RAID expansion |
| Power consumption use per enclosure | 400 watts max (305 watts average) per FibreVault |
Connector | Type | Domestic: L6-30P |
Operating limits | Ambient temp. | 10˚C to 40˚C (50˚F to 104˚F) |
| Relative humidity | 20 to 80% noncondensing |
| Max ambient temperatures at higher elevations | 40˚C (104˚F) at 2,438 m (8,000 ft) 37˚C (98.6˚F) at 3,050 m (10,000 ft) |
| Heat dissipation | 3,168 x 103 J/hr (3,000 BTU/hr) max per chassis assembly |
| Shock | 3 g @ 11 ms |
| Vibration | 0.25 g peak @ 5 Hz to 500 Hz |
Nonoperating limits (shipping and storing) | Ambient temperature | -40˚C to 65˚C (-40˚F to 149˚F) |
| Gradient, maximum | 24˚C/hr (43.2˚F/hr) |
| Relative humidity | 10% to 90% noncondensing |
| Elevation | 7,625 m (25,010 ft) |
Physical | Cabinet dimensions | Height: 192 cm (75.3 in.) |
|
| Width: 65 cm (25.5 in.) |
|
| Depth: 87 cm (34.25 in.) |
| Approx. max. wt. | Approx. 500 kg (1,100 lbs): |
Service clearance | Front access | 91.5 cm (36 in) |
| Rear and side access | 76.2 cm (30 in) |
Buses | External host fibre bus | Fibre channel (up to 1-Gb-per-second transfer rate) |
Because the native interface for the FC-AL disk drives is copper, the Silicon Graphics fibre channel option uses a copper interface with a female DB9 connector.
To support longer distances and provide a fallback in case of grounding and EMI issues with copper, an optional fiber optic interface using a media interface adapter is available.
The optical interface uses a shortwave laser (CD-ROM laser) with a wavelength of 780 nm. Silicon Graphics supports cable lengths of 25 to 300 meters (from the host to the fibre enclosure).
This interface is also be used with 62.5 μm optical cable and the total length supported is 300 meters (about 60% compared to the 50 μm cable). Silicon Graphics fibre products support the 62.5 μm optical cable and a maximum distance of 300 meters.
Many buildings are already wired with 62.5 μm multimode optical cables.
| Caution: To maintain acceptable quality and signal integrity, use only Silicon Graphics supplied copper and optical cables with your fibre enclosures. |
Table A-7 summarizes characteristics for the copper twinax and fiber optic cables.
Table A-7. Cable Characteristics
Characteristic | Copper Twinax | Fibre Optic |
|---|---|---|
Variant | 100-TW-EL-S full duplex (quad conductor) | 62.5 μm Type: 780 nm |
Range | 10 to 25 meters | up to 300 meters |
Transmitter | PECL | 100-M5-SL/N-I |
Medium | 150 Ohm | 0.002-0.5 |
Connector | Male DB9 | SC duplex connector |
Maximum length | Host system to enclosure: 25 m. | Host system to enclosure: 300 m. |
The copper twinax cable is a fully shielded, full-duplex, balanced cable capable of supporting distances of 25 meters at the 1.0625-Gbaud transfer rate. Distances greater than 10 meters require equalization in the cable connector.
A copper cable connecting a fibre enclosure and the host system is either 10 or 25 meters. Cables longer than 10 meters must be equalized. All copper fibre channel cables shipped with Silicon Graphics products are equalized. FibreVault in an Origin2000 or Onyx2 rack always uses a 3-meter copper cable. See the sections “Fibre Channel Board Logic” and “Copper or Optical Media Interface Adapter” in Chapter 1 for more information on cabling.
Fibre enclosures are connected (linked) by 0.3-meter copper cables (0.5-meter cables are used in the Origin rack implementation). They must never be longer than 10 meters. Fibre enclosure interconnections should maintain LCC consistency. One FC loop should interconnect all and only the LCC As, and the other FC loop should interconnect all and only LCC Bs.
The connector for both ends of the twinax cable is a male DB9 connector. The shield on each end of the cable connects directly to the connector shield, providing a DC ground on both ends. With a system and a fibre enclosure on separate building grounds, a potential for grounding problems exists when this cabling is connected with a copper cable utilizing a DC ground shield on both ends. In this case, use the optional fibre optical cabling to link host and enclosure.
There are a number of fibre channel interface cables available from Silicon Graphics. Table A-8 lists information regarding some of these optional components.
Table A-8. Silicon Graphics Fibre Interface Cables
|
|
| Silicon Graphics Part # |
|---|---|---|---|
LCC-to-LCC | Copper with DB9 | 0.3 m (11 inches) | 9470156 |
LCC-to-LCC | Copper with DB9 | 0.5 m (19.7 inches) | Shipped with FibreVault in Origin kit only |
Origin2000 or Onyx2 host to internal FibreVault enclosure | Copper with DB9 | 3 meters (10 feet) | 018-0742-00x |
XIO or PCI (host) to fibre enclosure | Copper with DB9 | 10 meters (32.8 feet) | 018-0570-00x |
XIO or PCI (host) to fibre enclosure | Copper with DB9 | 25 meters (82 feet) | 018-0571-00x |
XIO or PCI (host) to fibre enclosure | Optical cable | 25 meters (82 feet) | 018-0656-201 |
XIO or PCI (host) to fibre enclosure | Optical cable | 100 meters (328 feet) | 018-0656-301 |
XIO or PCI (host) to fibre enclosure | Optical cable | 300 meters (984 feet) | 018-0656-401 |