Read Log Ext Log Page 11H; Counter Definitions; Identifier 000H; Identifier 001H - Hitachi HTS542525K9SA00 Specifications

10.21.3.3 Counter Definitions

The counter definitions in this section specify the events that a particular counter identifier
represents.

10.21.3.4 Identifier 000h

There is no counter associated with identifier 000h. A counter identifier of 000h indicates that
there are no additional counters in the log page.

10.21.3.5 Identifier 001h

The counter with identifier 001h returns the number of commands that returned an ending status
with the ERR bit set to one in the Status register and the ICRC bit set to one in the Error register.
10.21.3.6 Identifier 009h
The counter with identifier 009h returns the number of times the device transitioned into the
PHYRDY state from the PHYNRDY state, including but not limited to asynchronous signal events,
power management events, and COMRESET events. If interface power management is enabled,
then this counter may be incremented due to interface power management transitions.
10.21.3.7 Identifier 00Ah
The counter with identifier 00Ah returns the number of transmitted Device-to-Host Register FISes
with the device reset signature in response to a COMRESET, which were successfully followed by
an R_OK from the host.
10.21.3.8 Identifier 00Bh
The counter with identifier 00Bh returns the number of received Host-to-Device FISes of all types
(Data and non-Data) to which the device responded with R_ERRP due to CRC error.
10.21.3.9 Identifier 00Dh
The counter with identifier 00Dh returns the number of received Host-to-Device FISes of all types
(Data and non-Data) to which the devices responded with R_ERRP for reasons other than CRC
error.

10.21.4 READ LOG EXT Log Page 11h

READ LOG EXT log page 11h is one page (512 bytes) in length. The first Dword of the log page contains
information that applies to the rest of the log page. Software should continue to process counters until a counter
identifier with value 0h is found or the entire page has been read. A counter identifier with value 0h indicates that
the log page contains no more counter values past that point. Log page 11h is defined in Table 68.
Table 67: Read Long EXT Log Page 11h data structure definition
Byte
0
1
2
3
...
7 6 5
Deskstar 7K160 Hard Disk Drive Specification
4 3 2
Reserved
Reserved
Reserved
Reserved
...
106
1 0