Honeywell HDVR, Справочное руководство, Страница: 216 / 238

Rev 1.00 198 Document 900.0261
04/05
S.M.A.R.T.
Note SMART log statistics are not permanently stored. If a system reset occurs, the
SMART statistics reset to default, indicating all drives are fine.
Table F-1 lists some of the attribute id and name definitions
Table F-1 SMART Attributes
ID Attribute name Description
Read Error Rate Count of non-corrected read errors. More errors (that is, lower
attribute value) means worse condition of disk surface.
22 Throughput Performance Overall (general) throughput performance of HDD (hard disk
drive).
3 Spin-up Time Average time of spindle spin up time (from stopped to fully
operational).
4 Start/Stop Count Count of spindle start/stop cycles.
5 Reallocated Sector Count Count of reallocated sectors. When the HDD finds a read/write
error, it marks this sector as ‘reallocated’ and transfers data to
the special reserved area. The more sectors reallocated (lower
attribute value), the worse the condition of the disk
mechanical subsystem.
7 Seek Error Rate Count of seek errors. When your HDD reads data, it positions
heads in the needed place. If there is a failure in the
mechanical positioning system, a seek error arises. The more
seek errors (lower attribute value), the worse the condition of
a disk surface and disk mechanical subsystem.
8 Seek Time Performance Shows how fast seek operations are going.
9 Power on Hours Count Count of hours in power on state.
10 Spin-up Retry Count Count of retry of spin start attempts. If the HDD cannot start its
spindle on the first try (to make the HDD work) it makes
another try, and so on while the spindle will not rotate
normally. This attribute stores a count of start retries.
11 Drive Calibration Retry Count Number of attempts to calibrate a drive.
12 Drive Power Cycle Count Count of full HDD power cycle. Which means ‘start / stop’
(power on / power off) of the HDD. The attribute importance is
identical to ‘Power-on Hours’.
196 Relocation Event Count Quantity of re-mapping operations.
197 Current Pending Sector Count Current quantity of unstable sectors (waiting for re-mapping).
198 Off-line Scan Un-correctable
Sector Count Quantity of uncorrected errors.
199 Ultra ATA CRC Error Rate Count of errors found in data transfers in Ultra-DMA
(UDMA-33,66,100) mode by CRC (control sum). This is
another method of error control in data transfer operations but
for high-speed transfer modes.