Flush Cache (X 'E7') - Fujitsu MHW2120BK Maintenance Manual

(24) FLUSH CACHE (X 'E7')

This command is used to write every write cache data stored by the device into the
medium. When the device completes all the data writing, it reports the status to
the host system. The device performs every error recovery so that the data are
read correctly.
When executing this command, the writing of the data may take several seconds if
much data are to be written.
In case a non-recoverable disk write error has occurred while the data is being
read, the error generation address is put into the shadow block register before
ending the command. This error sector is deleted from the write cache data.
•
Error reporting conditions
(1) A SATA communication error occurred (ST = 51h, ER = 14h).
At command issuance (Shadow Block Registers setting contents)
CM
DH
CH
CL
SN
SC
FR
At command completion (Shadow Block Registers contents to be read)
ST
DH
CH
CL
SN
SC
ER
C141-E261
1 1 1 0
x x x x
xx
xx
xx
xx
xx
Status information
x x x x
xx
xx
xx
xx
Error information
5.3 Host Commands
0 1 1 1
xx
xx
5-101