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Silver 3.5 inch internal hard drive with circuit board visible

Seagate

Seagate ST318203LCProduct Cheetah 18LP 18.20 GB 10000 rpm 3.5" internal hard drive

SKU CH-0D8Q-86K5D MPN ST318203LCProduct

An 18.2 GB 3.5-inch internal hard drive spinning at 10,000 rpm with a 1 MB buffer

  • NAND Flash Memory TypeSLC
  • 20 GB capacity stores critical data
  • 10000 rpm spindle speed accelerates data access
  • SCSI Wide Ultra2 interface enables fast transfers
  • 5 inch form factor fits standard drive bays
  • New condition ensures reliable out-of-box performance

Enterprise storage drive

The Seagate Cheetah 18LP ST318203LC is a 3.5-inch internal hard drive built for high-throughput enterprise workloads. Its 18.20 GB capacity and 10000 rpm spindle speed suit database servers and transaction-heavy applications that demand rapid sequential access. The 1 MB buffer helps sustain burst performance during intensive I/O operations. This new drive targets IT managers upgrading legacy SCSI storage arrays.

Thermals and acoustics

A 10000 rpm spindle generates measurable heat and audible whine under sustained load, typical for enterprise-class drives of this era. The motor draws consistent power during continuous read-write cycles, so adequate chassis airflow is required to maintain operating temperatures. Acoustic output rises noticeably during seek-heavy workloads compared to slower desktop drives. No active cooling solution is included with the bare drive.

Legacy interface considerations

The Wide Ultra2 SCSI interface requires a compatible host bus adapter and proper termination, which are not supplied in the package. Cable type and length must match the specific controller to avoid signal integrity issues. Firmware updates or management utilities, if needed, must be sourced separately from the manufacturer. Retail or OEM packing may vary, so mounting screws and rails are not guaranteed.

Points forts

  • 20 GB capacity stores critical data
  • 10000 rpm spindle speed accelerates data access
  • SCSI Wide Ultra2 interface enables fast transfers
  • 5 inch form factor fits standard drive bays
  • New condition ensures reliable out-of-box performance

Caractéristiques

BrandSeagate
NAND Flash Memory TypeSLC

Questions sur cet article

How do I install the ST318203LC Cheetah 18LP 18.20 GB 10000 rpm 3.5" drive and what step is often missed?

Mount the 3.5" drive in a standard bay, attach the 68-pin Wide Ultra2 SCSI cable, set a unique SCSI ID with the jumpers, connect power, then terminate the bus at the last device — the termination step is the one most often missed.

What maintenance or replacement will the ST318203LC Cheetah 18LP 18.20 GB 10000 rpm 3.5" drive need later?

No preventive maintenance is required; the sealed mechanism has no user-serviceable parts, so the only later action is full drive replacement if the 10000 rpm motor or head assembly fails.

What limit appears first on the ST318203LC Cheetah 18LP 18.20 GB 10000 rpm 3.5" drive under sustained use?

The 1 MB buffer fills quickly during long sequential transfers, so the drive must wait for the 10000 rpm platters to complete each write, making buffer depth the first bottleneck.

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