Western Digital Corporation

WDAC1425 Caviar

Physical Characteristics

• Cylinders:
• Precomp: NONE
• Landing Zone: AUTO
• Sectors/Track:
• Platters: 1
• R/W Heads: 2
• Servo Heads: E

Logical Characteristics (ATA Drives)

• Cylinders: 827
• Heads: 16
• Sectors/Track: 63
• PIO Modes: #3
• DMA Modes: #1

Performance

• Average Access: 10ms
• Track/Track Access: 4.0ms
• Onboard Cache: 64KB
• Transfer Rate: 42.1Mb
• Rotation Rate: 4,500 RPM

Additional Specs

• Head Activation: VC
• Recording Method:
  • Tracks/Inch (TPI):
  • Bits/Inch (BPI):
• M.T.B.F.: 300K (hours)
• Power: 4.6Wi
• Height: 25.4 (mm)

Comments: Reed Solomon ECC, Mode 1 Multiword DMA

r: v4.4