Toshiba TECRA A11 Series User Manual

Tests and Diagnostics
3-166 [CONFIDENTIAL] TECRA A11/S11/P11/Satellite Pro S500 Series Maintenance Manual (960-784)
3.35.6.6 Hard Disk Test
1) Sequential read
This subtest performs a forward read operation (0 to Maximum) by 63 sectors.
2) Address uniqueness
This subtest writes unique address data to each sector of the HDD track-by-track. The data
written to each sector is then read and compared with the original data. There are three ways
the HDD can be read.
▼ Forward sequential
▼ Reverse sequential
▼ Random
3) Random address / data
This subtest writes random data in a random length to random addresses. This data is then
read and compared to the original data.
4) Cross talk & peak shift
This subtest writes eight types of worst pattern data (listed below) to a cylinder, then reads
the data while moving from cylinder to cylinder. (Test the data interference in the neighbor
track)
Worst pattern data Cylinder
‘ B5ADAD ‘ 0 cylinder
‘ 4A5252 ‘ 1 cylinder
‘ EB6DB6 ‘ 2 cylinder
‘ 149249 ‘ 3 cylinder
‘ 63B63B ‘ 4 cylinder
‘ 9C49C4 ‘ 5 cylinder
‘ 2DB6DB ‘ 6 cylinder
‘ D24924 ‘ 7 cylinder

Toshiba TECRA A11 Series Specifications

General

RAM	Up to 8GB DDR3
Operating System	Windows 7 Professional
Battery Life	Up to 4 hours
Optical Drive	DVD SuperMulti Drive
LAN	Gigabit Ethernet
Processor	Intel Core i3, i5, or i7
Display	15.6-inch HD (1366x768)
Storage	HDD up to 500GB
Graphics	Intel HD Graphics
Wireless	802.11 a/g/n
Webcam	Integrated webcam
Ports	USB 2.0, VGA, RJ-45
Card Reader	SD
Battery	6-cell Li-ion
Dimensions	374 x 250 mm
Chipset	Mobile Intel QM57 Express Chipset