Status report in the event of an error | Fujitsu MHW2040AC guide

6.5 Write Cache

•If a Reset or command is received while a transfer of one sector of data is in progress, data is not written in the sector of the media where the interruption occurred, and sectors accepted before interruption occurred is written in the medium.

(3)Status report in the event of an error

The status report concerning an error occurring during writing onto media is created when the next command is issued. Where the command reporting the error status is not executed, only the error status is reported. Only the status of an error that occurs during write processing is reported.

The error status is not reported in the following case:

•

The reset command is received after an error has occurred during writing to media.

Reset processing is performed as usual. The error status that has occurred during writing to media is not reported.

(4) Enabling and disabling

Enabling and disabling of the Write Cache function can be set only with the SET FEATURES command. The setting does not changed even when the error status is reported.

The initial setting is stored in the system area of media. System area information is loaded whenever the power is turned on.

(5) Reset response

When a reset is received while cached data is stored on the data buffer, data of the data buffer is written on the media, and reset processing is then performed. This is true for both a hard reset and soft reset.

(6) Caching function when power supply is turned on.

The caching function is invalid until Calibration is done after the power supply is turned on (about 7 or 8 sec). It is effective in Default after that as long as the caching function is not invalidly set by the SET FEATURES command.

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MHW2060AC, MHW2040AC specifications

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Fujitsu MHW2040AC Status report in the event of an error, Enabling and disabling, Reset response

Models: MHW2060AC MHW2040AC