Streaming Logs - Hitachi CinemaStar P7K500 Specifications

The Not Sequential bit specifies that the next read stream command with the same Stream ID may not be
sequential in LBA space. This information helps the device with pre-fetching decisions.
8.16.1.4
Read Continuous bit
If the Read Continuous bit is set to one for the command, the device shall transfer the requested amount of
data to the host within the Command Completion Time Limit even if an error occurs. The data sent to the
host by the device in an error condition is vendor specific.
8.16.1.5
Write Continuous bit
If the Write Continuous bit is set to one for the command, and an error is encountered, the device shall
complete the request without posting an error.
Completion Time Limit, the erroneous section on the media may be unchanged or may contain undefined
data. A future read of this area may not report an error, even though the data is erroneous.
8.16.1.6
Handle Streaming Error bit
The Handle Streaming Error bit specifies to the device that this command starts at the LBA of a recently
reported error section, so the device may attempt to continue its corresponding error recovery sequence
where it left off earlier. This mechanism allows the host to schedule error recovery and defect management
for content critical data.
8.16.2

Streaming Logs

The Streaming Data Transfer feature set requires two error logs and one performance log. These logs are
accessed via the Read Log Ext command; the information included in the error logs is volatile and is not
maintained across power cycles, hard resets, or sleep. These error logs are 512 bytes in length and retain
the last 31 errors that occurred during any Streaming Data transfer.
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
If an error cannot be resolved within the Command
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