Quantum 10K II - Manual (Page 302)

Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives 6-1
Chapter 6
FEATURE DESCRIPTIONS
This chapter provides descriptions of many of the features incorporated in the
Quantum Atlas 10K II Ultra 160/m SCSI hard disk drive family.
6.1 KEY FEATURES
Atlas 10K II Disk Drives provide unequaled quality and performance. They are
designed to improve the performance of high-end workstations, file servers, and
storage systems. Among their features are the following
:
• 9.2, 18.4, 36.7, or 73.4 GB formatted capacity (512 bytes/block)
• MR heads and banded recording for higher overall bit-densities
• Hardware XOR to automatically detect and correct errors and defects in the data
stream for array applications (RAID). Third Party XOR support for Force.
• Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) Revision 2
support
• ORCA (Optimized Reordering Command Algorithm) and tagged command
queuing for greater throughput
• SCAM-2 (SCSI Configured AutoMatically) Auto ID configuration
• 8 MB Track-oriented segmented cache buffer with prefetch
• Automatic Power Management System with power-saving sub-states
• 10,000 rpm rotational speed yielding 3.0 ms average latency
• 4.7 ms average random seek time (READ) and a TBD ms average access-to-data
time for 1.0-inch form factor drives; 5.2 ms second average random seek time
(READ) and TBD ms average access-to-data time for the 1.6-inch form factor
drive.
• Embedded servo system for exceptional head positioning accuracy and long life
• “Zero latency” reads and writes reduce data access time
• Full SCSI–3 compliance 1 (compatible with SCSI-2 and SCSI–1)
1 The drives are in compliance with the SCSI-3 draft proposed ANSI standards as they exist at
the time of product release; SCSI-3 features may not be enabled on drives when shipped.