IBM Deskstar 120 GXP, Specifications

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Signature (A5h) 7-0
Checksum 15-8
Integrity word (see note below) 255
Reserved 8-254
1 = SMART feature set supported 0
1 = SMART self-test supported 1
1 = SMART error log supported 2
1 = Security feature set supported 3
Reserved 6-4
1 = Host Protected Area feature set supported 7
Reserved 15-8
Command set/feature set supported 7
Maximum LBA address 3-6
1 = Ultra DMA mode 0 is supported 0
1 = Ultra DMA mode 1 and below are supported 1
1 = Ultra DMA mode 2 and below are supported 2
1 = Ultra DMA mode 3 and below are supported 3
1 = Ultra DMA mode 4 and below are supported 4
1 = Ultra DMA mode 5 and below are supported 5
Reserved 15-6
Ultra DMA modes supported 2
1 = Multiword DMA mode 0 is supported 0
1 = Multiword DMA mode 1 and below are supported 1
1 = Multiword DMA mode 2 and below are supported 2
Reserved 15-3
Multiword DMA modes supported 1
Data Structure revision 0001h 0
Content Word
Figure 93. Device Configuration Overlay Data structure
Note: Bits 7–0 of this word contain the value A5h. Bits 15–8 of this word contain the data structure check-
sum. The data structure checksum is the two's complement of the sum of all byte in words 0 through 254
and the byte consisting of bits 7–0 of word 255. Each byte is added with unsigned arithmetic and overflow
is ignored. The sum of all bytes is zero when the checksum is correct.
other reason FFh
Subcommand code is invalid 08h
DCO is not supported 07h
Protected area is now established 06h
Device is now SET MAX Locked or Frozen mode 05h
User attempt to disable any feature enabled 04h
Device feature is already modified with DCO 03h
Device is now Security Locked mode 02h
DCO feature is frozen 01h
Error reason code & description Sector count
Invalid bit location Cylinder low
Invalid word location Cylinder high
Figure 94. DCO error information definition
Deskstar 120GXP hard disk drive specifications
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