IBM DJSA-210 - Travelstar 10 GB Hard Drive, Технические характеристики

Страница: 180 / 211

10 Spin Retry Count
12 Device Power Cycle Count
191 Gsense Error Rate
192 Power Off Retract Count
193 Load/Unload Cycle Count
196 Reallocation Event Count
197 Current Pending Sector Count
198 Off-Line Scan Uncorrectable Sector Count
199 Ultra DMA CRC Error Count
Status Flag definitions:
Always 0 Reserved bits 6–15
may either 0 or 1 Reserved bits 2–5
If bit = 0, the Attribute Value is updated only
during Off–Line testing. If bit = 1, the Attribute
Value is updated during On–Line testing or during
both On–Line and Off–Line testing.
On–Line
Collective bit
1
If bit = 0, an Attribute Value less than or equal
to its corresponding Attribute Threshold indicates
an Advisory condition where the usage or age of the
device has exceeded its intended design life
period. If bit = 1, an Attribute Value less than or
equal to its corresponding Attribute Threshold
indicates a Pre–Failure condition where imminent
loss of data is being predicted.
Pre–Failure/
Advisory bit
0
Definition Flag Name Bit
Figure 113. Status Flag definitions
Normalized values: The device will perform conversion of the raw Attribute Values to transform them into
normalized values which the host can then compare with the Threshold values. A Threshold is the
excursion limit for a normalized Attribute Value. In normalizing the raw data, the device will perform any
necessary statistical validity checks to ensure that an instantaneous raw value is not improperly reflected
in the normalized Attribute Value (i.e., one read error in the first 10 reads being interpreted as exceeding
the read error rate threshold when the subsequent 1 billion reads all execute without error). The end
points for the normalized values for all Attributes will be 1 (01h) at the low end, and 100 (64h) at the high
end for the device. For Performance and Error Rate Attributes, values greater than 100 are also possible.
The maximum value possible is 253 (FDh).
Travelstar 32GH/30GT/20GN hard disk drive specifications
166