Quantum Daytona 170/256/341/514AT

The following values are used to set the PC/AT CMOS Table:

Drive                         127AT  170AT   256AT   341AT   514AT
Cylinder                             538     723     1011    997
Heads                                10      11      15      16
Sectors                              62      63      44      63
Write Precomp                        65535*  65535*  65535*  65535*
Landing Zone                         538     723     1011    997

Configuration
Disks                         1      2       2       3       4
Head/Recording Surfaces       2      3       4       6       8
Standby to Drive Ready (sec)  2.0    2.5     2.5     2.8     3.0


Track Density                 3100 tpi
Flux Density                  53,700 fci
Recording Density             71,600 bpi
Encoding Method               RLL 1,7
Average Seek Time             17 ms
Track-to-Track Seek Time      5 ms
Full Stroke Seek Time         24 ms
verage Rotational Latency     6.66 ms
Rotational Speed              4500 RPM
Internal Data Rate            22 to 36 MB/sec
Burst Transfer Rate (buffer)  13 MB/sec
Buffer Size                   128 KB
Interleave                    1:1

Projected Field MTBF          350,000 hours
Preventive Maintenance        Not Required
Uncorrectable Error Rate      <1 in 1014
Error-Correction Method       Reed Solomon
Warranty*                     1 year

PHYSICAL SPECIFICATIONS
  inches (mm)  
      Width                               2.75 (70)
      Length                              3.94 (100)    
      Height                                  
        Daytona 127, 170 & 256            0.50 (12.5)
        Daytona 341 & 514                 0.75 (19)
  
  ounces (gm)              
        Daytona 127                       4.4 (125)
        Daytona 170                       4.6 (130  
        Daytona 256                       4.6 (130)
        Daytona 341                       6.4 (180)
        Daytona 514                       6.6 (185)
  
ENVIRONMENTAL LIMITS
  Operating       
      Temperature (:C)                    5 to 55
      Non-condensing Humidity (%)         10 to 90
      Shock (G, 11 ms)                    10
      Vibration (G, peak-to-peak)         1
      Altitude (ft.)                      -200 to 10,000
  
  Non-Operating
      Temperature (:C)                    -40 to 65
      Non-condensing Humidity (%)         10 to 90
      Shock4 (G, 2 ms)                    300
      Vibration (G, peak-to-peak)         5
      Altitude (ft.)                      -200 to 40,000
  
  Sound Pressure                      
      Maximum @ Idle (dBA)                33

POWER SPECIFICATIONS
  Nominal Voltage                         +5
  Voltage Margin (%)                      15              
  Typical Power Draw5  (W)
      Standby                             0.2
      Idle                                
        Daytona 127, 170, & 256           1.2
        Daytona 341 & 514                 1.4
  
      Active
        Daytona 127, 170, & 256           1.9
        Daytona 341 & 514                 2.1
  
      Operating                           Read   Write  Seek
        Daytona 127, 170, & 256           2.5    2.6    2.5
        Daytona 341 & 514                 2.6    2.8    2.7
  
  Peak Spin-up Current (mA)
        Daytona 127, 170 & 341            1,200
        Daytona 256 & 514                 1,300

FEATURES
  DisCache. and WriteCache               Defect Free Interface. Firmware 
  Adaptive Segmentation                  DiskWare
  AutoRead and AutoWrite                 ShockLock      
  AutoTransfer                           AutoIdle and AutoPark
  Local Bus with I/O Channel Ready       StackWrite
  Fast Multiword DMA Support             MCC Compatibility
  112-bit Reed Solomon ECC On-the-Fly
    AT Bus Cable Select

*= The Quantum Daytona does not require Write Pre compensation, your CMOS setting should be set to reflect that this feature is not enabled. A value of 65535 is a number that many BIOS manufactures use to disable this feature if the value 'none' is not present.

Jumper Settings

The Daytona disk drive has three drive mode jumper options; DS, SP and CS. To configure the drive as:

• The MASTER of a two drive configuration or as the only drive: Jumper DS only, SP and CS open.
• A SLAVE drive in a two drive configuration: Remove any jumpers across DS, SP or CS.
• A MASTER drive in a two drive configuration if the SLAVE drive does not use DASP: Jumper DS and SP only.
• CS not used, DO NOT install a jumper across this position.

The SP jumper is only used when the second drive in a two drive configuration does not support DASP. DASP (Drive active / drive 1 present) is a CAM (Common Access Method) defined signal that indicates the presence of a second drive, DASP is used during power on initialization and after a reset. Prior to this definition, products were introduced which did not utilize this method to detect the presence of a second drive. The SP jumper is only used on the MASTER drive, with the DS jumper, when the second drive does not support DASP.

The CS (Cable Select) jumper is only used in systems that support this feature. Cable Select allows for each IDE disk drive to be jumped the same and the position on the cable determines the ID. This requires special cable and both drives on the interface would have to support this feature.