Product Features and Technical Details

Cheetah 15K.3 SCSI drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded server technology, and a wide Ultra320 SCSI interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations,
network servers, mainframes, and supercomputers.

Ultra320 SCSI uses negotiated transfer rates. These transfer rates will occur only if your host adapter supports these data transfer rates and is compatible with the required hardware requirements of the I/O circuit type. This drive also operates at SCSI-1 and SCSI-2 data transfer rates for backward compatibility with non-Ultra/Ultra2/Ultra160/Ultra320 SCSI host adapters

The Cheetah 15K.3 SCSI family has the following standard features

• Integrated Ultra320 SCSI interface.

• 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

• Supports Information Unit transfer protocol

• Firmware downloadable via SCSI interface

• Selectable even byte sector sizes from 512 to 528 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)

• ECC burst correction length of up to 288.

• 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

• Zoned bit recording (ZBR)

• Vertical, horizontal, or top down mounting

• Dynamic spindle brake

• 8,192 kbytes data buffer

• Hot plug compatibility (Section 9.6.4.2 lists proper host connector needed) for LC model drives

• Drive Self Test (DST)

• Supports SCSI bus fairness

Media characteristics

The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection.

Performance

• Supports industry standard interfaces

• Programmable multi-segmentable cache buffer (see Section 4.5)

• 15k RPM spindle. Average latency = 2.0 msec

• Command queuing of up to 64 commands

• Background processing of queue

• Supports start and stop commands (spindle stops spinning)

Reliability

• 1,200,000 hour MTBF

• LSI circuitry

• Balanced low mass rotary voice coil actuator

• Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.)

This is REFURBISHED ITEM in the plain brown box.