The Cheetah 36XL family has the following standard features:

Integrated Ultra160 SCSI controller
Multimode SCSI drivers and receiverssingle-ended (SE) and low voltage differential (LVD)
16 bit I/O data bus
Asynchronous and synchronous data transfer protocol (supports Ultra160 transfer rate)
Firmware downloadable via SCSI interface
Selectable even byte sector sizes from 512 to 2,064 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 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
Zoned bit recording (ZBR)
Vertical, horizontal, or top down mounting
Dynamic spindle brake
4,096 kbyte data buffer (16,384 kbytes on LWV and LCV models)
Hot plug compatibility (Section 9.6.4.2 lists proper host connector needed) for LC and LCV model drives
Drive Self Test (DST)
Supports SCSI bus fairness

Media characteristics

The media used on the drive has a diameter of approximately 3.3 inches (84 mm). The aluminum substrate is
coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability
and environmental protection.

Performance

Supports industry standard Ultra3 SCSI interface
Programmable multi-segmentable cache buffer (see Section 4.5)
10,033 RPM spindle. Average latency = 2.99 ms
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.)

FORMATTED CAPACITY (GB) __________________36.70
       AVERAGE SECTORS PER TRACK ________________470 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________152,288
       CYLINDERS ________________________________19,036 user
       HEADS ______PHYSICAL______________________8
       DISCS (3.5 in) ___________________________4
       MEDIA TYPE _______________________________THIN FILM/GMR
       RECORDING METHOD _________________________PRML 16/17 EPR4
       INTERNAL TRANSFER RATE (mbits/sec)________320 to 490
       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_31 to 50
       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync
            Low Voltage Differential(LVD) _______80/160 Sync
       SPINDLE SPEED (RPM) ______________________10,022
       AVERAGE LATENCY (mSEC) ___________________2.99
       BUFFER _______________________ ___________4MB
         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 __________________________241,128 avg
       SECTORS PER DRIVE ________________________71,687,369
       TPI (TRACKS PER INCH) ____________________24,406
       BPI (PEAK KBITS PER INCH) ________________381.28
       AVERAGE ACCESS (ms read/write)____________5.4/6.2
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms read/write) ________0.8/1.2
       MAX FULL SEEK (ms read/write) ____________10.5/11.0
       MTBF (power-on hours) ____________________1,200,000
       SHOCK (G's, 11/2/.5 ms):
                operating (Read/Write) __________15
                abnormal ________________________15
                nonoperating ____________________125/250/
       ACOUSTICS (Bels typical) ________Idle ____3.8
                                         Max ____
       POWER DISSIPATION (watts/BTUs) Active ____/
                                      Idle ______9.6/32.8
       POWER REQUIREMENTS: +12V START-UP (amps) _2.3
                           +12V TYPICAL (amps) __0.50 idle
                           +5V START-UP (amps) __1.0
                           +5V TYPICAL (amps) ___0.71 idle
                           IDLE (watts) _________
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):     1.00/25.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.75/146.05
                        Weight    (lbs/kg):      1.5/0.680