Hitachi P7K500 Specifications - Page 252

Output Parameters To The Device Feature Current Feature Previous Sector Count Current TAG (bits 7-3) Sector Count Previous PRIO (bits 7) Sector Number Current The number of sectors to be transferred low order, bits (7:0). The number of sectors to be transferred high order, bits (15:8). . The TAG value shall be assigned to be different from all other queued commands. The value shall not exceed the maximum queue depth specified by the Word 75 of the Identify Device information. The Priority (PRIO) value shall be assigned by the host based on the priority of the command issued. The device shall make a best effort to complete High priority requests in a more timely fashion than Normal priority requests. The Priority values are defined as follows: 0b Normal priority 1b High priority LBA (7:0) Sector Number Previous LBA (31:24) Cylinder Low Current LBA (15:8) Cylinder Low Previous LBA (39:32) Cylinder High Current LBA (23:16) Cylinder High Previous LBA (47:40) Device/Head FUA (bit 7) When the FUA bit is set to 1, the completion status is indicated after the transferred data are written to the media also when Write Cache is enabled. When the FUA bit is set to 0, the completion status may be indicated before the transferred data are written to the media successfully when Write Cache is enabled. Input Parameters From The Device Sector Number (HOB=0) LBA (7:0) of the address of the first unrecoverable error. Sector Number (HOB=1) LBA (31:24)of the address of the first unrecoverable error. Cylinder Low (HOB=0) LBA (15:8)of the address of the first unrecoverable error. Cylinder Low (HOB=1) LBA (39:32)of the address of the first unrecoverable error. Cylinder High (HOB=0) LBA (23:16)of the address of the first unrecoverable error. Cylinder High (HOB=1) LBA (47:40)of the address of the first unrecoverable error. HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1) 244