Quantum Bigfoot 25AT User Manual

QUANTUM BIGFOOT  
1. 2 AT /2.1 / 2.5AT  
AT  
Key Features  
High capacity (more than  
1,280 MB per disk)  
5.25-inch, ultra slim-line  
(0.75-inch-high) form factor  
Fast ATA-2 PIO Mode 4 and  
Multiword DMA Mode 2  
support  
AutoTransfer technology  
High-Capacity Disk Drives for  
Multiple AutoRead/Multiple  
AutoWrite  
Value-Oriented Personal Computers  
160-bit Reed Solomon  
double-burst ECC on-the-fly  
Overview  
transaction, there are fewer seeks and  
head switches. This speed particularly  
enhances multimedia playback and  
virtual memory use of the disk drive.  
Quantum’s implementation of a Fast  
ATA-2 interface supports local-bus AT  
Programmed Input/Output (PIO) Mode 4  
Quantum Bigfoot 5.25-inch hard disk  
drives, designed for value-oriented per-  
sonal computer systems, combine very  
high capacity with excellent cost-per-  
megabyte economics. Offered in format-  
ted capacities of 1,286, 2,110, and 2,577  
Adaptive Segmented Buffer  
®
®
DisCache and WriteCache  
firmware  
Advanced Embedded Servo  
megabytes (MB) of storage, these products and Multiword DMA Mode 2 data trans-  
are particularly well-suited to multimedia fers at speeds of up to 16.6 MB per  
S.M.A.R.T. (Self-Monitoring,  
Analysis, and Reporting  
Technology) Revision 2  
Support  
systems and applications that require  
large storage capacities.  
second. Enhanced Quantum AutoTransfer  
technology takes advantage of the intel-  
ligent processing features of the drives  
and uses a proprietary ASIC design to  
The Quantum Bigfoot drives’ ultra  
slim-line design, which measures 8 by  
5.75 by 0.75 inches, fits into any avail-  
able 5.25-inch bay in most modular PCs  
without any customization to system  
enclosures. Since Quantum Bigfoot  
drives mount exactly like a CD-ROM  
unit, installation is actually easier than  
a traditional 3.5-inch drive, since no  
brackets or mounting rails are required.  
AT-Bus Cable Select  
speed data transfers by minimizing drive-  
to-host overhead delays.  
System-Controlled Power  
Modes  
Multiple AutoRead and Multiple  
AutoWrite industry-first solutions for  
®
Defect Free Interface  
firmware  
increasing sequential data transfersallow  
multiple-sector transfers for a given data  
request. This combination of firmware  
and hardware also enhances AutoTransfer  
DiskWare downloadable  
firmware  
These products are engineered specifi- capabilities.  
cally to balance maximum storage capa-  
300,000-hour MTBF  
city, consumer multimedia performance  
requirements, and attractive cost-per-MB  
economics. By applying field-proven  
components to the 5.25-inch form factor,  
Quantum also provides the highest levels  
of quality and reliability.  
Reliability and Versatility  
Quantum Bigfoot drives meet the highest  
standards for data integrity. Automatic,  
double-burst, on-the-fly error detection  
and correction are implemented using  
an advanced custom ASIC and firmware.  
These drives also come with an AT-  
High-Performance Data Transfers  
Quantum Bigfoot drives provide high-  
speed data transfers through a well-  
designed, Fast ATA-2 interface. The  
Bus Cable Select feature that supports  
the latest Plug-and-Play ATA specifica-  
tions. When combined with host system  
support,* this simplifies disk drive instal-  
combination of a 128-kilobyte buffer and lation by automatically configuring the  
the increased track capacities available  
with 5.25-inch disks allow these drives  
to meet the performance requirements  
of the newest generation of consumer  
PC systems. These features also result in  
improved sequential performance at the  
application level because, for any single  
drive and eliminating the need for  
manual jumper settings. This feature is  
particularly beneficial for users who are  
upgrading their system through the  
addition of a second hard disk drive.  
*Host system support is defined as Quantums Disk Manager  
Software (supplied with drive).  

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