Western Digital WDE2170 - Manual (Page 10)

Description and Features WD Enterprise WDE2170/WDE4360
RELEASED 04-08-97 4079-001045 Rev. B 2
1.2. Advanced Features
Product Features
Formatted Capacities of 2.17 GB and 4.36 GB
Low-profile 1-Inch (25.4 mm) in Height
7200 RPM Spindle Speed
SCSI-3 SPI Compliant; Ultra Fast/Ultra Fast Wide with SCA-2 interface supported
512 kilobytes Programmable Multi-segmented Data Buffer (1 MB option)
Zoned Recording
Headerless Format
SCAM Plug-N-Play Compliant
Single-ended or Differential SCSI Drivers/Receivers (optional)
Active Termination (available on 50- and 68-pin single-ended drives)
Downloadable Firmware (both interface and servo code)
Embedded Servo
Balanced Spindle
Dynamic Spindle Brake
Vertical or Horizontal Mounting
Performance Features
Media Data Transfer Rate up to 140 Mbits/s
Average Read Seek Time of 8 ms
4.17 ms Rotational Latency
Command Queuing
Command Reordering (Seek and Rotational)
Write/Read Coalescing
Adaptive Caching Algorithm
Self-Optimizing Buffer Ratios
Adaptive Segmented Cache
Auto-Read Reallocation/Auto-Write Reallocation (ARRE/AWRE)
Adaptive Servo Functions
Reliability Features
Self Monitoring and Reporting Technology (S.M.A.R.T.)
Direct Hot-Plug Capability in SCA-2 Configuration
Hardware ECC On-The-Fly Error Correction
CRC Data Buffer Protection
Sector Slipping Defect Management
Self Diagnostics on Power Up
1,000,000 Hour MTBF Projected
These advanced product features are further defined in section 3. In certain cases we
refer you to other documents for additional detail. To obtain a document, contact your
local Western Digital sales office, authorized Western Digital reseller, or access the
Western Digital web page at www.wdc.com