Standard Features; Media Characteristics; Performance; Reliability - Seagate ST34520N - Medalist 4.55 GB Hard Drive Product Manual

Medalist Pro Product Manual, Rev. D
3.1

Standard features

The Medalist Pro family has the following standard features:
• Integrated SCSI controller
• Single-ended and multimode single-ended/low voltage differential SCSI drivers and receivers
• 8 bit and 16 bit I/O data bus models available
• Asynchronous and synchronous data transfer protocol
• Firmware downloadable via SCSI interface
• Sector size 512 bytes/sector
• Programmable drive capacity
• Flawed sector reallocation at format time
• Programmable auto write and read reallocation
• Reallocation of defects on command (Post format)
• 256-bit Reed-Solomon error correcting code
• Sealed head and disc assembly
• No preventative maintenance or adjustment required
• Dedicated laser textured head landing zone
• Embedded servo data rather than a separate servo data surface
• 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
• Active IC terminators enabled by jumpers ("N" and "W" models only)
• 512 K byte data buffer
• Hot plug compatibility (Section 9.6.4.3 lists the proper host connector needed) for "WC" and "LC" drives
• SCAM (SCSI Configured Automatically) plug-n-play level 2 compliant, factory set to level 1 (not user select-
able)
• Low audible noise for office environment
• Low power consumption
• Audio Visual (A/V) ready
3.2

Media characteristics

The media used on the drive has a diameter of approximately 3.5 inches (86 mm). The aluminum substrate is
coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability
and environmental protection.
3.3

Performance

• Supports industry standard Ultra SCSI interface (also called "Fast-20 SCSI") and Ultra-2 SCSI ("Fast-40")
• Programmable 1 or 3 segment cache buffer
• 7200 RPM spindle. Average latency = 4.17 ms
• Command queuing of up to 64 commands
• Background processing of queue
• Supports start and stop commands (spindle stops spinning)
3.4

Reliability

• 800,000 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.)
• 3-year warranty
7