Cactus Technologies, Limited
Byte(s)
Description
372
Short self-test routine recommended polling time (in minutes)
373
Extended self-test routine recommended polling time (in minutes)
374-510
Reserved
511
Data structure checksum
6.2. S.M.A.R.T Attribute Data Structure
Each attribute returned in bytes 2-361 of the 512-byte SMART data has the following format:
Byte(s)
Descriptions
0
Attribute ID
1 – 2
Flags
3
Current Value
4
Worst Value
5– 10
Attribute value
11
Reserved
6.3. S.M.A.R.T Attributes
The S.M.A.R.T attributes returned by the Read Data command are listed below:
Attribute ID
Attribute Name
Description
01h
Vendor Specific
09h
Power-on hours
Total time of power-on state in hours
0Ch
Power cycle count
Number of power on/off cycles
0Dh
Vendor Specific
AFh
Program Failure Block Count
Number of flash program failures:
bits[23:0]: program fail count
bits[47:24]: erase fail count
B8h
Initial bad block count
Number of initial bad blocks detected during firmware
install
Cactus Technologies Limited
Commercial Grade -250SH Series SSD Product Manual
v2.1
21
