Table of Contents
Advertisement
Command Specifications
4.2.9 SYNCHRONIZE CACHE (35)
Bit
Byte
0
1
2
3
4
5
6
7
8
9
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.
The values specified in the "Logical block address" field and "Block count" field
in the CDB are disregarded and if any unwritten data exist in the data buffer,
writing of all those data to the disk media is performed.
If bit 1 of CDB byte 1, the "Immed (immediate) bit, is "1," a GOOD status is
reported immediately at the point when the legality of the CDB is confirmed and
the command is terminated. If this bit is "0," a GOOD status is reported at the
point when writing of the unwritten data in the data buffer is completed and the
command is terminated.
4-152
7
6
5
0
0
0
Logical Block Address (MSB)
Logical Block Address
Logical Block Address
Logical Block Address (LSB)
0
0
0
Block Count (MSB)
Block Count (LSB)
0
0
0
4
3
2
X'35'
0
0
0
Immed
0
0
0
0
0
0
1
0
0
0
0
0
0
C141-C012
Advertisement
Table of Contents
