User Manual
900S Series Industrial Grade CFast Product Manual v2.0Cactus Technologies
®
21
Disables the SMART function. Upon receiving the command, the drive disables all SMART operations.
This setting is maintained when the power is turned o and then back on. Once this command has
been received, all SMART commands other than SMART ENABLE OPERATIONS are aborted with the
Aborted Command error.
This command disables all SMART capabilities including any and all timer and event count functions
related exclusively to this feature. After command acceptance, this controller will disable all SMART
operations. SMART data in no longer be monitored or saved. The state of SMART is preserved across
power cycles.
S.M.A.R.T. Disable Operations
6.2.
S.M.A.R.T. Enable/Disable Attribute Autosave
6.3.
This subcommand is issued with the Sector Count register set to either 00h or F1h. 00h enables
Autosave while F1h disables it. However, this is in aect a NOP as the SMART attributes are always
auto-saved.
S.M.A.R.T. Read Data
6.4.
This subcommand returns 512 bytes of S.M.A.R.T. data structure. When this subcommand is issued,
the Feature Register must contain D0h, the LBA Mid register must contain 4Fh and the LBA high
register must contain C2h. The returned data has the following structure:
Byte Value Description
0-1 0010h SMART structure revision number
2-361 1st – 30th attribute data (12 bytes each)
362 00h Oine data collection status (no oine data collection)
363 Selftest execution status
364-365 0000h Total time in seconds to complete oine data collection
366 00h Reserved
367 00h Oine data collection capability (no oine data collection)
368-369 0003h S.M.A.R.T. Capability
370 00h Error logging capability (no error logging capability)
371 00h Reserved
372 00h Short self-test routine recommended polling time
373 00h Extended self-test routine recommended polling time
374-385 00h Reserved
386-387 0004h SMART Hyperstone structure version
388-391 Firmware “Commit” counter
392-395 Firmware Wear Level Threshold