Seagate ST318404LW SCSI Hard Drives

Seagate Part #/MPN: ST318404LW

DiscTech Item #: SGT-ST318404LW-BN-OE

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Enterprise Grade

Capacity: 18GB

Speed: 10,000RPM

Interface Types: SCSI 68pin HD68

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 52 to 68

Average Seek Time: 5.2 / 6.2

Electrical Interface: SCSI LVD U160 - 160MBps 16-bit

On-Board Cache: 4MB

Seagate Cheetah 18XL 18GB 10K U160 68pin SCSI Hard Drive ST318404LW - Brand New OEM

Standard features

The Cheetah 18XL family has the following standard features:

  • Integrated Ultra160 SCSI controller
  • Multimode SCSI drivers and receivers—single-ended (SE) and low voltage differential (LVD)
  • 16 bit I/O data bus
  • Asynchronous and synchronous data transfer protocol
  • Firmware downloadable via SCSI interface
  • Selectable even byte sector sizes from 512 to 4,096 bytes/sector
  • Programmable sector reallocation scheme
  • Flawed sector reallocation at format time
  • Programmable auto write and read reallocation
  • Reallocation of defects on command (post format)
  • Enhanced ECC maximum burst correction length of 240 bits with a guaranteed burst correction length of 233 bits.
  • Sealed head and disc assembly
  • No preventative maintenance or adjustment required
  • Dedicated head landing zone
  • Embedded servo design
  • Self diagnostics performed when power is applied to the drive
  • 1:1 Interleave
  • Zoned bit recording (ZBR)
  • Vertical, horizontal, or top down mounting
  • Dynamic spindle brake
  • 4,096 kbyte data buffer
  • Hot plug compatibility (Section lists proper host connector needed) for “LC” model drives
  • Drive Self Test (DST)
ST-318404LW UNFORMATTED CAPACITY (GB) ________________ FORMATTED CAPACITY (GB) __________________18.351 AVERAGE SECTORS PER TRACK ________________415 rounded down ACTUATOR TYPE ____________________________ROTARY VOICE COIL TRACKS ___________________________________86,304 CYLINDERS ________________________________14,384 user HEADS ______PHYSICAL______________________6 DISCS (3.5 in) ___________________________3 MEDIA TYPE _______________________________THIN FILM/GMR RECORDING METHOD _________________________PRML 16/17 EPR4 INTERNAL TRANSFER RATE (mbits/sec)________285 to 424 INTERNAL FORMATTED TRANSFER RATE (MB/sec)_26 to 40 EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync Low Voltage Differential(LVD) _______80/160 Sync SPINDLE SPEED (RPM) ______________________10,033 AVERAGE LATENCY (mSEC) ___________________2.99 BUFFER (/optional) _______________________4MB/16MB Read Look-Ahead, Adaptive, Multi-Segmented Cache INTERFACE ________________________________Ultra SCSI Wide Low Voltage Differential __________Ultra3-SCSI Wide ASA II, SCAM level 2 (1 default) BYTES PER TRACK __________________________203,008 avg SECTORS PER DRIVE ________________________35,843,669 TPI (TRACKS PER INCH) ____________________18,145 BPI (PEAK KBITS PER INCH) ________________339 AVERAGE ACCESS (ms read/write)____________5.2/5.8 Drive level without controller overhead SINGLE TRACK SEEK (ms read/write) ________0.6/0.9 MAX FULL SEEK (ms read/write) ____________10.0/11.0 MTBF (power-on hours) ____________________1,200,000 SHOCK (G's, 11/2/.5 ms): operating (Read/Write) __________15 abnormal ________________________15 nonoperating ____________________150/250/ ACOUSTICS (Bels typical) ________Idle ____3.8 Max ____ POWER DISSIPATION (watts/BTUs) Active ____/ Idle ______8.5/29.0 POWER REQUIREMENTS: +12V START-UP (amps) _1.7 +12V TYPICAL (amps) __0.40 idle +5V START-UP (amps) __0.7 +5V TYPICAL (amps) ___0.70 idle IDLE (watts) _________9 IBM AT DRIVE TYPE ________________________0 or NONE Physical: Height (inches/mm): 1.02/26.13 Width (inches/mm): 4.01/101.98 Depth (inches/mm): 5.77/146.68 Weight (lbs/kg): 1.5/0.680 

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Alternate MPNs: 9N9002-002

Weight: 1.8 lb

Warranty: 1 Year DiscTech

Brand New

Condition Levels Explained

The product is brand new.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty