Deskstar 7K160 Hard Disk Drive Specification
105
10.21.3.2 Counter Identifiers
Each counter begins with a 16-bit identifier. Table 67 defines the counter value for each identifier. Any unused
counter slots in the log page should have a counter identifier value of 0h.
Optional counters that are not implemented shall not be returned in log page 11h. A value of '0' returned for a counter
means that there have been no instances of that particular event. There is no required ordering for event counters
within the log page; the order is arbitrary and selected by the device vendor.
For all counter descriptions, 'transmitted' refers to items sent by the device to the host and 'received' refers to items
received by the device from the host.
Bits 14:12 of the counter identifier convey the number of significant bits that counter uses. All
counter values consume a multiple of 16-bits. The valid values for bits 14:12 and the
corresponding counter sizes are:
1h 16-bit counter
2h 32-bit counter
3h 48-bit counter
4h 64-bit counter
Any counter that has an identifier with bit 15 set to one is vendor specific. This creates a vendor specific range of
counter identifiers from 8000h to FFFFh. Vendor specific counters shall observe the number of significant bits 14:12
as defined above.
Table 66: Phy Event Counter Identifiers
Identifier
(Bits 11:0)
Mandatory
/
Optional
Description
000h Mandatory
No counter value; marks end of counters in the page
001h Mandatory
Command failed and ICRC bit set to one in Error register
002h Optional
Not supported (R_ERR response for Data FIS)
003h Optional
Not supported (R_ERR response for Device-to-Host Data FIS)
004h Optional
Not supported (R_ERR response for Host-to-Device Data FIS)
005h Optional
Not supported (R_ERR response for Non-data FIS)
006h Optional
Not supported (R_ERR response for Device-to-Host Non-data FIS)
007h Optional
Not supported (R_ERR response for Host-to-Device Non-data FIS)
008h Optional
Not supported (Device-to-Host non-Data FIS retries)
009h Optional
Not supported (Transitions from drive PhyRdy to drive PhyNRdy)
00Ah
Mandatory
Signature Device-to-Host Register FISes sent due to a
COMRESET
00Bh Optional
Not supported (CRC errors within a Host-to-Device FIS)
00Dh Optional
Not supported (Non-CRC errors within a Host-to-Device FIS)
00Fh
Optional
Not supported (R_ERR response for Host-to-Device Data FIS due
to CRC errors)
010h
Optional
Not supported (R_ERR response for Host-to-Device Data FIS due
to non-CRC errors)
012h
Optional
Not supported (R_ERR response for Host-to-Device Non-data FIS
due to CRC errors)
013h
Optional
Not supported (R_ERR response for Host-to-Device Non-data FIS
due to non-CRC errors)
Summary of Contents for Deskstar 7K160
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Page 297: ...Write Buffer 249 Write cache function 93 Write Continuous bit 102 Write DRQ interval time 30 ...