Hitachi HDS728080PLAT20 Specifications - Page 161
Read Stream Error Log
UPC - 829686000094
View all Hitachi HDS728080PLAT20 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 161 highlights
12.17.3.1 Self-test log data structure revision number The value of this revision number shall be 01h. 12.17.3.2 Self-test descriptor index This indicates the most recent self-test descriptor. If there have been no self-tests, this is set to zero. Valid values for the Self-test descriptor index are 0 to 18. 12.17.3.3 Extended Self-test log descriptor entry The content of the self-test descriptor entry is shown below. Description Self-test number Self-test execution status Power-on life timestamp in hours Self-test failure check point Failing LBA (7:0) Failing LBA (15:8) Failing LBA (23:16) Failing LBA (31:24) Failing LBA (39:32) Failing LBA (47:40) Vendor specific Bytes 1 1 2 1 1 1 1 1 1 1 15 26 Offset 00h 01h 02h 04h 05h 06h 07h 08h 09h 0AH 0BH 12.17.4 Read Stream Error Log Table 109 defines the format of the Read Stream Error log. Entries are placed into the Read Stream Error log only when the SE bit is set to one in the Status Register. The 512 bytes returned shall contain a maximum of 31 error entries. The Read Stream Error Count shall contain the total number of Read Stream Errors detected since the last successful completion of the Read Log Ext command with LBA Low register set to 22h. This error count may be greater than 31, but only the most recent 31 errors are represented by entries in the log. If the Read Stream Error Count reaches the maximum value that can be represented after the next error is detected the Read Stream Error Count shall remain at the maximum value. After successful completion of a Read Log Ext command with the LBA Low Register set to 22h, the Read Stream Error Log shall be reset to a power-on or hardware reset condition, with the Error Log Index and Read Stream Error Count cleared to zero. The Read Stream Error Log is not preserved across power cycles and hardware reset. Table 106: Read Stream Error Log Description Structure Version Error Log Index Read Stream Error Log Count Reserved Read Stream Error Log Entry #1 Bytes 1 1 2 12 16 Offset 00h 01h 02h 04h 20h Read Stream Error Log Entry #31 16 1F0h Deskstar 7K80 Hard Disk Drive Specification 157