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Command Specifications
3 -
74
C141-E167
Notes:
1. Commands which come under restrictions in read operations or write operations when "1"
is specified in the "RdInh" (read inhibit) or "WrInh" (write inhibit) flag are as follows.
“RdInh” • READ • VERIFY (*)
• READ EXTENDED (*) • WRITE AND VERIFY (*)
• READ LONG • PRE-FETCH
“WrInh” • FORMAT UNIT • WRITE EXTENDED (*)
• REASSIGN BLOCKS • WRITE LONG
• WRITE • WRITE SAME
• WRITE AND VERIFY (*)
* When zero is specified in the processing block count, that command is not executed.
2. Even if a write operation is prohibited by this command, "0" is indicated in the "WP (write
protect)" bit reported to the INIT in the MODE SENSE and MODE SENSE EXTENDED
commands.
3. If "0" is specified in this command in the "WrInh" flag, execution of a FORMAT UNIT
command or REASSIGN BLOCKS command issued in linked form following this
command is permitted (the specification of the range where access is permitted is not
applied.)
3.2.10 SYNCHRONIZE CACHE (35)
Bit
Byte
76543210
0 X‘35’
1 LUN 0 0 0Immed0
2 Logical Block Address (MSB)
3 Logical Block Address
4 Logical Block Address
5 Logical Block Address (LSB)
6 00000000
7 Block Count (MSB)
8 Block Count (LSB)
9 0000000Link
This command matches the logical block data in the data buffer with the same logical block data
recorded on the disk media. If the data in the logical block in the data buffer is newer than the data
on the disk media, those data are written to the disk media.
When the write cache is used, unwritten data held in the data buffer which are written to the disk
media are written using this command.