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When your servers go down, so does productivity--and profits. So for maximum performance and uptime, one system combines power, capacity, and throughput with the business-critical reliability, availability, and serviceability (RAS) features usually found on high-end systems. And it all comes in an affordable tower package that's easy to rack mount: The SunTM EnterpriseTM 250 server. It accommodates up to two 300- or 400-MHz UltraSPARCTM-II processors for extra-high performance. Six hot-plug Ultra SCSI disks and Fast Ethernet combine for unbeatable throughput in its class. What's more, its sophisticated RAS features, such as multiple independent data paths, ECC memory and data-path protection, Automatic System Recovery, built-in service processor with Remote System Control (RSC), and redundant hot-swap power, make the Enterprise 250 server ideal for your most demanding business-critical applications.  

Number Up to two processor modules
Type 300- or 400-MHz UltraSPARC-II with onboard e-cache
Cache memory 2-MB external cache per processor with 300- or 400-MHz CPU
Datapath Buffered 144-bit UPA bus, 128 bits data, 16 bits ECC
UPA operates at 100-MHz with 300- or 400-MHz CPUs
Main Memory
Capacities 16 DIMM slots, four banks of four slots
Accepts 32-, 64-, or 128-MB DIMMs
128 MB to 2 GB total memory capacity
Memory type 144-pin 5V 60-ns memory modules
Datapath 576 bits wide, 512 bits data, 64 bits ECC
Up to 600 MB/sec throughput
Standard Interfaces
Serial 2 EIA-232D or EIA-423 serial port, one 50- to 384-Kb/sec synchronous, one 50- to 460.8-Kbaud asynchronous
Parallel 2-MB/sec Centronics-compatible bidirectional EPP port, DB25
Ethernet One 10/100-Mb/sec autoselect port, RJ45 or MII
Keyboard and mouse One standard keyboard/mouse port; mini din-8
PCI Three slots for 32- or 64-bit, 33-MHz 5V PCI cards One slot for 32- or 64-bit, 33- or 66-MHz 3.3V PCI cards
SCSI One 40-MB/sec Ultra SCSI-3 bus for internal disk One 40-MB/sec fast/wide SCSI-3 bus for external disk
Internal Mass Storage
Disk bays Six hot-swap disk bays
Disk controllers One 40-MB/sec Ultra SCSI-3 channel
Disks Up to six 18-GB 3.5 x 1.6 in., 36-GB 3.5 x 1.0 in., 10000 rpm, hot-swap Ultra SCSI-3 drives
DVD Internal 10X DVD-ROM drive
Floppy 1.44-MB 3.5-in. floppy drive
Tape Optional 5.25 x 1.6 in. fast SCSI tape drive, 8-mm, 4-mm DDS-3, DDS-2, MLR3, SLR5
External Mass Storage
Host adapters Support up to four single- or dual-channel, single-ended or differential, fast/wide or Ultra SCSI PCI host adapters
Disks Supports up to nine 109-GB Sun StorEdgeTM MultiPack systems Supports Sun StorEdge A1000, D1000, A3000, A3500, or A5000 disk arrays
Tapes Supports up to two SCSI tape devices from external onboard SCSI Supports up to 16 SCSI tape devices, total 8-mm, 4-mm DDS-2, DDS-3, DLT, QIC
Console Options
Monitor 17-, 20-, or 24-in. color
Frame buffer PGX32 PCI graphics card Up to 1600 x 1000 (24-in. monitor) 256 colors
Keyboard and mouse Standard Sun keyboard and mouse
PCI I/O Options
10/100-Mb/sec Ethernet, FC-AL, Sun Quad FastEthernetTM, Token Ring, FDDI single attach, FDDI dual attach, ATM-155, ATM-622, high-speed serial, eight-line serial, Ultra SCSI with 10/100 Mb/sec Ethernet, dual-channel single-ended Ultra SCSI, dual-channel differential Ultra SCSI
Power Supplies
Type One or two N+1 redundant, hot-swap, universal input (1 supply standard)
Maximum DC output 360 W
Power bus Common, load-sharing
Operating system Solaris 2.5.1, 11/97 release or Solaris 2.6, 5/98 release, Solaris 7, Solaris 8 release, Solaris 7
Languages C, C++, Cobol, FORTRAN, JavaTM, Pascal ONC+TM
Networking NFSTM, TCP/IP, IPXTM/SPX, SunLinkTM OSI, MHS, OCE, DNI, SNA, x.25, PPP, SunXTLTM, Frame Relay
System monitoring SolsticeTM SyMONTM
Clustering Four-node clusters with SunCluster 2.1
System and Network Management
Remote system control, Solstice JumpStartTM, Solaris Web StartTM, Solstice AdminSuiteTM, Solstice DiskSuiteTM, Solstice BackupTM (single server), and other Solstice products.
AC power 90-264 Vrms, 47-63Hz
AC service requirement 15A at 110V, 7.5A at 240V Max power consumption: 720 watts
Heat output 1980 BTU/hr
Operating 5 C to 35 C (41 F to 95 F) 20% to 80% relative humidity, noncondensing
Nonoperating -20 C to 60 C (-4 F to 140 F) 93% relative humidity, noncondensing at 35 C
Acoustic noise 5.6 bels
Declared noise emissions in accordance with ISO 9296, measured at 23 C
Meets or exceeds the following requirements:
Safety EN60950/IEC950 TUV, UL 1950, CB Scheme IEC 950, C22.2 No. 950 from UL
RFI/EMI EN55022/CISPR22 Class B, VCCI Class II FCC Part 15 Sub Part B
Immunity EN50082/IEC-1000-2/IEC-1000-3, IEC-1000-4, IEC-1000-5
X-ray DHHS 21 Subchapter J, PTB German X-ray Decree
Dimensions and Weights
Height 51.7 cm (20.3 in.)
Width 26.2 cm (10.3 in.) or 35.3 cm (13.9 in.) with caster option
Depth 73.2 cm (28.8 in.) including power supply handle
Weight 46.72 kg (103 lb.) or 53.52 kg (118 lb.) fully configured
Rack Mounting
Up to four Sun Enterprise 250 servers may be mounted in a 56-in. expansion cabinet. Up to five Enterprise 250 servers may be mounted in a 72-in. expansion cabinet.


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