Seagate ST318418N SCSI Hard Drive

Seagate Barracuda 36ES2 18GB 7.2K U160 50pin SE SCSI Hard Drive ST318418N - Factory Recertified OEM

Capacity: 18GB
Spindle Speed: 7,200RPM
Interface Type: SCSI 50pin
Disk Size: 3.5"x1.0" (Low Profile Hard Drive)
Sustained Throughput (MBps): 32.3 - 52.2
Average Seek Time (read/write ms): 4.17
Electrical Interface Speed: SCSI Ultra - 20MBps 8-bit
On-Board Cache: 2MB

Here are a few of our other 50pin related products:

Barracuda 36ES2 drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a wide SCSI Ultra160 interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers.

Compatibility

                         
SEAGATE TECHNOLOGY LLC
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 2002


ST-318418N Ultra SCSI (Barracuda 36ES2)

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  º REAR VIEW º  (ST-318418N)
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         50 pin I/O Cable Connection
         ³
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  º FRONT VIEW º  (ST-318418N)
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                                ³  ÀDo not remove. Do not install jumpers
    TOP (HDA)                  ÕØÍÍ͸     1
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                    ³³³³³³³³         ³³³ÀÄÄ ID 4
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     (12 secs * ID)   ³³³³³³         ÀÄÄÄÄÄ Remote LED (pin-11 +5v)
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           Reserved ÄÄÄÄÄÙ³³
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  ³                       2 1       2 1     2 1  ³
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                            ST-318418N



       UNFORMATTED CAPACITY (GB) ________________
       FORMATTED CAPACITY (GB) __________________19.923
       AVERAGE SECTORS PER TRACK ________________748 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________52,000
       CYLINDERS ________________________________26,000 user
       HEADS ______PHYSICAL______________________2
       DISCS (3.5 in) ___________________________1
       MEDIA TYPE _______________________________THIN FILM/GMR
       RECORDING METHOD _________________________PRML 16/17 EPR4
       INTERNAL TRANSFER RATE (mbits/sec)________434 to 500
       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_32.3 to 52.2
       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync
       SPINDLE SPEED (RPM) ______________________7,200
       AVERAGE LATENCY (mSEC) ___________________4.17
       BUFFER ___________________________________2048KB
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________Ultra SCSI
              ASA II, SCAM level 2 (1 default)
       BYTES PER TRACK __________________________401 Kbytes avg
       SECTORS PER DRIVE ________________________38,914,048
       TPI (TRACKS PER INCH) ____________________58,480
       BPI (PEAK KBITS PER INCH) ________________480
       AVERAGE ACCESS (ms read/write)____________8.5/9.3
         Drive level without controller overhead4
       SINGLE TRACK SEEK (ms read/write) ________0.6/1.0
       MAX FULL SEEK (ms read/write) ____________10.0/10.7
       MTBF (power-on hours) ____________________800,000
       SHOCK (G's, 11/2/.5 ms):
                operating (Read/Write) __________/63/
                abnormal ________________________
                nonoperating (single event) _____/350/
       ACOUSTICS (Bels typical) ________Idle ____2.0
                                         Max ____
       POWER DISSIPATION (watts/BTUs) Active ____/
                                      Idle ______8.0/27.3
       POWER REQUIREMENTS: +12V START-UP (amps) _2.05
                           +12V TYPICAL (amps) __0.31 idle
                           +5V START-UP (amps) __0.83
                           +5V TYPICAL (amps) ___0.78 idle
                           IDLE (watts) _________
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):      1.0/25.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.75/146
                        Weight    (lbs/kg):      1.2/0.54

Already low-level formatted at the factory with x spare sectors at
the end of each x cylinder region.  

ZBR = Zone Bit Recording = Variable sectors per track


Seagate reserves the right to change, without notice, product 
offerings or specifications. (09/27/2002)