IBM DBCA-204860 Hard Drive Specifications - Page 183

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14.0 Appendix 14.1 Commands Support Coverage Following table is provided to facilitate the understanding of DBCA-2xxxxx command support coverage comparing to the ATA-4 defined command set. The column of 'Implementation' shows the capability of DBCA-2xxxxx for those commands. Command Command Code Name Implementation ATA 4 Categoly for DBCA 2xxxxx 00h 03h 08h 1xh 20h 21h 22h 23h 30h 31h 32h 33h 38h 3Ch 40h 41h 50h 7xh 87h 90h 91h 92h 94h 99h A0h A1h A2h NOP No Optional CFA REQUEST EXTENDED ERROR CODE No Optional (7*) DEVICE RESET No Optional (7*) RECALIBRATE Yes obsoleted(*) READ SECTOR(S) (w/ retry) Yes Mandatory READ SECTOR(S) (w/o retry) Yes Mandatory READ LONG (w/ retry) Yes obsoleted(*) READ LONG (w/o retry) Yes obsoleted(*) WRITE SECTOR(S) (w/ retry) Yes Mandatory WRITE SECTOR(S) (w/o retry) Yes Mandatory WRITE LONG (w/ retry) Yes obsoleted(*) WRITE LONG (w/o retry) Yes obsoleted(*) CFA TRANSLATE SECTORS W/O ERASE No Optional (7*) WRITE VERIFY (2) Vendor specific obsoleted(*) READ VERIFY SECTOR(S) (w/ retry) Yes Mandatory READ VERIFY SECTOR(S) (w/o retry) Yes Mandatory FORMAT TRACK Yes obsoleted(*) SEEK Yes Mandatory CFA TRANSLETE SECTOR No Vendor specific EXECUTE DEVICE DIAGNOSTIC Yes Mandatory INITIALIZE DEVICE PARAMETERS Yes Mandatory DOWNLOAD MICROCODE Reserved Optional Reserved Reserved Reserved(*) PACKET No Not to be used IDENTIFY PACKET DEVICE No Not to be used SERVICE No Not to be used Figure 115. Command coverage -- continued -- © Copyright IBM Corp. 1998 175

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14.0 Appendix
14.1
Commands Support Coverage
Following table is provided to facilitate the understanding of DBCA-2xxxxx command support coverage
comparing to the ATA-4 defined command set. The column of 'Implementation' shows the capability of
DBCA-2xxxxx for those commands.
Command
Command
Implementation
ATA 4 Categoly
Code
Name
for DBCA 2xxxxx
00h
NOP
No
Optional
03h
CFA REQUEST EXTENDED ERROR CODE
No
Optional (7*)
08h
DEVICE RESET
No
Optional (7*)
1xh
RECALIBRATE
Yes
obsoleted(*)
20h
READ SECTOR(S)
(w/ retry)
Yes
Mandatory
21h
READ SECTOR(S)
(w/o retry) Yes
Mandatory
22h
READ LONG
(w/ retry)
Yes
obsoleted(*)
23h
READ LONG
(w/o retry) Yes
obsoleted(*)
30h
WRITE SECTOR(S)
(w/ retry)
Yes
Mandatory
31h
WRITE SECTOR(S)
(w/o retry) Yes
Mandatory
32h
WRITE LONG
(w/ retry)
Yes
obsoleted(*)
33h
WRITE LONG
(w/o retry) Yes
obsoleted(*)
38h
CFA TRANSLATE SECTORS W/O ERASE
No
Optional (7*)
3Ch
WRITE VERIFY (2)
Vendor specific obsoleted(*)
40h
READ VERIFY SECTOR(S) (w/ retry)
Yes
Mandatory
41h
READ VERIFY SECTOR(S) (w/o retry) Yes
Mandatory
50h
FORMAT TRACK
Yes
obsoleted(*)
7xh
SEEK
Yes
Mandatory
87h
CFA TRANSLETE SECTOR
No
Vendor specific
90h
EXECUTE DEVICE DIAGNOSTIC
Yes
Mandatory
91h
INITIALIZE DEVICE PARAMETERS
Yes
Mandatory
92h
DOWNLOAD MICROCODE
Reserved
Optional
94h 99h
Reserved
Reserved
Reserved(*)
A0h
PACKET
No
Not to be used
A1h
IDENTIFY PACKET DEVICE
No
Not to be used
A2h
SERVICE
No
Not to be used
Figure 115. Command coverage
-- continued --
Copyright IBM Corp. 1998
175