Hitachi hard disk 0J11285 500 GB 2.5 " 8 MB 0J11285 Ficha De Dados
Códigos do produto
0J11285
Z5K500 OEM Specifications
143
SMART Selective self-test routine
When the value in the LBA Low register is 4 or 132, the Selective self-test routine shall be performed.
This self-test routine shall include the initial tests performed by the Extended self-test routine plus a
selectable read scan. The host shall not write the Selective self-test log while the execution of a Selective
self-test command is in progress.
When the value in the LBA Low register is 4 or 132, the Selective self-test routine shall be performed.
This self-test routine shall include the initial tests performed by the Extended self-test routine plus a
selectable read scan. The host shall not write the Selective self-test log while the execution of a Selective
self-test command is in progress.
The user may choose to do read scan only on specific areas of the media. To do this, user shall set the
test spans desired in the Selective self-test log and set the flags in the Feature flags field of the Selective
self-test log to indicate do not perform off-line scan. In this case, the test spans defined shall be read
scanned in their entirety. The Selective self-test log is updated as the self-test proceeds indicating test
progress. When all specified test spans have been completed, the test is terminated and the appropriate
self-test execution status is reported in the S.M.A.R.T. READ DATA response depending on the
occurrence of errors. The following figure shows an example of a Selective selftest definition with three
test spans defined. In this example, the test terminates when all three test spans have been scanned.
test spans desired in the Selective self-test log and set the flags in the Feature flags field of the Selective
self-test log to indicate do not perform off-line scan. In this case, the test spans defined shall be read
scanned in their entirety. The Selective self-test log is updated as the self-test proceeds indicating test
progress. When all specified test spans have been completed, the test is terminated and the appropriate
self-test execution status is reported in the S.M.A.R.T. READ DATA response depending on the
occurrence of errors. The following figure shows an example of a Selective selftest definition with three
test spans defined. In this example, the test terminates when all three test spans have been scanned.
Figure 9 Selective self-test test span example
After the scan of the selected spans described above, a user may wish to have the rest of media read
scanned as an off-line scan. In this case, the user shall set the flag to enable off-line scan in addition to
the other settings. If an error occurs during the scanning of the test spans, the error is reported in the
self-test execution status in the S.M.A.R.T. READ DATA response and the off-line scan is not executed.
When the test spans defined have been scanned, the device shall then set the offline scan pending and
active flags in the Selective self-test log to one, the span under test to a value greater than five, the
self-test execution status in the S.M.A.R.T. READ DATA response to 00h, set a value of 03h in the
off-line data collection status in the S.M.A.R.T. READ DATA response and shall proceed to do an off-line
read scan through all areas not included in the test spans. This off-line read scan shall completed as
rapidly as possible, no pauses between block reads, and any errors encountered shall not be reported to
the host. Instead error locations may be logged for future reallocation. If the device is powered-down
before the off-line scan is completed, the off-line scan shall resume when the device is again powered up.
From power-up, the resumption of the scan shall be delayed the time indicated in the Selective self-test
pending time field in the Selective self-test log. During this delay time the pending flag shall be set to one
and the active flag shall be set to zero in the Selective self-test log. Once the time expires, the active flag
shall be set to one, and the off-line scan shall resume. When the entire media has been scanned, the
off-line scan shall terminate, both the pending and active flags shall be cleared to zero, and the off-line
data collection status in the S.M.A.R.T. READ DATA response shall be set to 02h indicating completion.
scanned as an off-line scan. In this case, the user shall set the flag to enable off-line scan in addition to
the other settings. If an error occurs during the scanning of the test spans, the error is reported in the
self-test execution status in the S.M.A.R.T. READ DATA response and the off-line scan is not executed.
When the test spans defined have been scanned, the device shall then set the offline scan pending and
active flags in the Selective self-test log to one, the span under test to a value greater than five, the
self-test execution status in the S.M.A.R.T. READ DATA response to 00h, set a value of 03h in the
off-line data collection status in the S.M.A.R.T. READ DATA response and shall proceed to do an off-line
read scan through all areas not included in the test spans. This off-line read scan shall completed as
rapidly as possible, no pauses between block reads, and any errors encountered shall not be reported to
the host. Instead error locations may be logged for future reallocation. If the device is powered-down
before the off-line scan is completed, the off-line scan shall resume when the device is again powered up.
From power-up, the resumption of the scan shall be delayed the time indicated in the Selective self-test
pending time field in the Selective self-test log. During this delay time the pending flag shall be set to one
and the active flag shall be set to zero in the Selective self-test log. Once the time expires, the active flag
shall be set to one, and the off-line scan shall resume. When the entire media has been scanned, the
off-line scan shall terminate, both the pending and active flags shall be cleared to zero, and the off-line
data collection status in the S.M.A.R.T. READ DATA response shall be set to 02h indicating completion.
During execution of the Selective self-test, the self-test executions time byte in the Device S.M.A.R.T.
Data Structure may be updated but the accuracy may not be exact because of the nature of the test span
segments. For this reason, the time to complete off-line testing and the self-test polling times are not valid.
Progress through the test spans is indicated in the selective self-test log.
Data Structure may be updated but the accuracy may not be exact because of the nature of the test span
segments. For this reason, the time to complete off-line testing and the self-test polling times are not valid.
Progress through the test spans is indicated in the selective self-test log.
A COMRESET or software reset shall abort the Selective self-test except when the pending bit is set to
one in the Selective self-test log (see 14.41.7 Selective self-test log data structure). The receipt of a
S.M.A.R.T. EXECUTE OFF-LINE IMMEDIATE command with 0Fh, Abort off-line test routine, in the LBA
one in the Selective self-test log (see 14.41.7 Selective self-test log data structure). The receipt of a
S.M.A.R.T. EXECUTE OFF-LINE IMMEDIATE command with 0Fh, Abort off-line test routine, in the LBA