Seagate Part #/MPN: ST318418N
DiscTech Item #: SGT-ST318418N-NP-OE
- New PullCondition Levels Explained
The product has been mounted in a brand new system (e.g. server), then removed from the system, before entering service. These products may have some hours of usage due to system build time / burn-in / testing etc. New Pulls are guaranteed to have at least 95% (often 99%) of their service life remaining , they may show signs of being physically mounted and dismounted. All handling is performed by trained technicians, taking full ESD precautions.
- Warranty:1 Year DiscTechProduct Warranties Explained
The product has a DiscTech warranty for the time period specified. View our limited warranty
- Low Stock:Call for ETAStock Levels
This item is currently (nearly) out of stock. It may be possible to arrange fast shipment. If you need it urgently call us. Otherwise, it usually ships within 1 week.
Enterprise Grade
Capacity: 18GB
Speed: 7,200RPM
Interface Types: SCSI 50pin
Form Factor: 3.5inx1.0in LFF Hard Drive
Sector Size: 512 / 512e
Sustained Throughput: 32.3 - 52.2
Average Seek Time: 4.17
Electrical Interface: SCSI Ultra - 20MBps 8-bit
On-Board Cache: 2MB
Seagate Barracuda 36ES2 18GB 7.2K U160 50pin SE SCSI Hard Drive ST318418N - New Pull
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)
SEAGATE TECHNOLOGY LLC 1-800-SEAGATE http://www.seagate.com (C)opyright 2002 ST-318418N Ultra SCSI (Barracuda 36ES2) ÉÍÍÍÍÍÍÍÍÍÍÍ» º REAR VIEW º (ST-318418N) ÈÍÍÍÍÍÍÍÍÍÍͼ 50 pin I/O Cable Connection ³ J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\ TOP (HDA) ͵:::::::::::::::::::::::::Æͳ 0 0 0 0 ³ÍÍ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ; ÀÄ5ÄGÄGÄ12Ù BOTTOM ÉÍÍÍÍÍÍÍÍÍÍÍÍ» º FRONT VIEW º (ST-318418N) ÈÍÍÍÍÍÍÍÍÍÍÍͼ ÚÄÄ´Reserved. Shipped with cover installed. ³ ÀDo not remove. Do not install jumpers TOP (HDA) ÕØÍÍ͸ 1 ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͵::::³::::::ÆÍÍ BOTTOM ÔÍÍÍ;³³³³³2 J2 87654321 J6 ³³³³³À ID 1 :::::::: ³³³³ÀÄ ID 2 ³³³³³³³³ ³³³ÀÄÄ ID 4 Enable T-Res Ù³³³³³³³ ³³ÀÄÄÄ Reserved Start Delay ÄÙ³³³³³³ ³ÀÄÄÄÄ Reserved (pin-10 ground) (12 secs * ID) ³³³³³³ ÀÄÄÄÄÄ Remote LED (pin-11 +5v) Motor Start ÄÄÙ³³³³³ Write Protect ÄÄÄÙ³³³³ Parity Disable ÄÄÄÄÙ³³³ Reserved ÄÄÄÄÄÙ³³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÁÄÄÄÄÄÄÄ¿ ³ Termination Power-source Table ³ ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³ 2 1 2 1 2 1 ³ ³ A Drive Supplies Bus ÖÄ· ÖÄ· ³ ³ B Drive Supplies Own øºøº ºøºø ÖøÄø· ³ ³ C Bus Supplies Drive øÓø½ Óø½ø ÓøÄø½ ³ ³ A+B is valid A B C ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÙ 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)
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Weight: 1.8 lb
Warranty: 1 Year DiscTech
New Pull
The product has been mounted in a brand new system (e.g. server), then removed from the system, before entering service. These products may have some hours of usage due to system build time / burn-in / testing etc. New Pulls are guaranteed to have at least 95% (often 99%) of their service life remaining , they may show signs of being physically mounted and dismounted. All handling is performed by trained technicians, taking full ESD precautions.
1 Year DiscTech Warranty
The product has a DiscTech warranty for the time period specified. View our limited warranty