Hitachi HUS154530VLF400 Benutzerhandbuch

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Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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19.59.4  Download Microcode and Save (Mode 00101b) -Single Binary File
In this mode the data is transferred to the drive to save into the System reserved area on the disk. This is for functional upgrade 
and configuration change reflecting the user's requirements and the manufacturer’s reason or both, and it is stored in the media 
as a permanent copy. The newly downloaded code becomes effective after the drive issues and completes a self-initiated 
Power On Reset.
Note: It requires up to 30 seconds to update the microcode including the Flash ROM update.
Note: New code to be downloaded to the drive will be provided by development either by request of a customer for an addi-
tional function or as a result of a functional change by development. However please note that not all possible fixes or new 
functions can be applied to a drive in this manner and that there is a very high dependency on the level of ROM code contained 
within the drive. If an invalid code or a code not compatible with the ROM code is downloaded, the drive will usually reject 
this code and will continue normal operation. However there is a small possibility that an invalid code will be accepted.  If this 
occurs, the unit usually becomes inoperable and will have to be returned to the manufacturer for recovery. 
Buffer ID  field is used to indicate which portion of the microcode image is being downloaded.  To download microcode, the 
buffer ID should be set to 00h.  Other values are reserved for Hitachi development purposes only.