4.3 Settings
(3) Write cache mode
The write cache mode can be set. The write cache mode can also be enabled or disabled by the MODE SELECT command.
When the write cache mode is enabled, the cache control page is added to the code page of the mode parameter even if the
Table 4.3 Write cache mode setting
Write cache mode | |
|
|
Write cache is enabled at executing the | ON |
WRITE/WRITE AND VERIFY command. |
|
|
|
Write cache is disabled at executing the | OFF (*1) |
WRITE/WRITE AND VERIFY command |
|
|
|
*1 Setting when shipped |
|
When the write cache feature is enabled, a write error is reported at the completion status of next command. At a system so that the initiator retries the command, a retry process may be failed.
(4) Device type mode
The device type settings, which are returned when the INQUIRY command is issued to the optical disk drive, are shown below.
Table 4.4 Device type mode settings
Device type | Setting terminal |
|
|
X‘00’ (Direct access device) | OFF |
|
|
X‘07’ (Optical memory device) | ON (*1) |
|
|
*1 Setting when shipped |
|
(5) Spindle automatic stop mode
Normally, with the cartridge loaded, the spindle rotation is maintained until the spindle is instructed to stop by the START/STOP UNIT command. The spindle auto stop function automatically stops the spindle after the command has not been issued from the host for about 33 minutes (default value). When the command is issued from the host with the spindle automatically stopped, the optical disk derive turns the spindle again and performs processing in the same manner as in a ready state without posting a not ready state.
