Seagate ST318438LW Barracuda 36ES2 18GB 7.2K U160 68pin SE LVD SCSI Hard Drive

Seagate ST318438LW Barracuda 36ES2 18GB 7.2K U160 68pin SE LVD SCSI Hard Drive
$89.00
Capacity: | 18GB |
Speed: | 7.2K RPM |
Interface Types: | SCSI 68pin HD68 |
Form Factor: | 3.5" LFF Hard Drive |
Electrical Interface: | SCSI LVD U160 - 160MBps 16-bit |
Description
Seagate Barracuda ST318438LW 36ES2 18GB 7.2K U160 68pin SE LVD SCSI Hard Drive - New Pull
Alt MPN: 9W8005-001
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.
- Integrated Ultra160 SCSI controller
- Multimode SCSI drivers and receivers—single-ended (SE) and low voltage differential (LVD)
- 16 bit I/O data bus on LW models. 8 bit I/O data bus on the N model.
- 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
- 2,048 kbyte data buffer
- Drive Self Test (DST)
Specifications
SEAGATE TECHNOLOGY LLC 1-800-SEAGATE http://www.seagate.com (C)opyright 2002ST-318438LW 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) _______40 Sync Low Voltage Differential(LVD) _______80/160 Sync SPINDLE SPEED (RPM) ______________________7,200 AVERAGE LATENCY (mSEC) ___________________4.17 BUFFER ___________________________________2048KB 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 __________________________401Kbytes 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) __0.82 +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
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Alternate MPNs: 9W8005-001
Weight: 1.8 lb
Warranty: 1 Year DiscTech
Condition
New Pull
Warranty
1 Year DiscTech Warranty