User Manual

SCSI Commands Reference Manual, Rev. J 78
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
FOV (Format Options Valid) bit
0 A format options valid (FOV) bit set to zero specifies that the device server shall use its default settings for the DPRY, DCRT, STPF, and IP
bits. If the FOV bit is set to zero, the application client shall set these bits to zero. If the FOV bit is set to zero and any of the other bits
listed in this paragraph are not set to zero, the device server shall terminate the command with CHECK CONDITION status with the sense
key set to ILLEGAL REQUEST and the additional sense code set to INVALID FIELD IN PARAMETER LIST.
1 A FOV bit set to one specifies that the device server shall examine the values of the DPRY, DCRT, STPF, and IP bits. When the FOV bit is set
to one, the DPRY, DCRT, STPF, and IP bits are defined as follows.
DPRY (Disable Primary) bit
0 A disable primary (DPRY) bit set to zero specifies that the device server shall not use parts of the medium identified as defective in the
PLIST for application client accessible logical blocks. If the device server is not able to locate the PLIST or it is not able to determine
whether a PLIST exists, it shall take the action specified by the STPF bit.
1 A DPRY bit set to one specifies that the device server shall not use the PLIST to identify defective areas of the MEDIUM. The PLIST shall
not be deleted.
DCRT (disable certification) bit
0 A disable certification (DCRT) bit set to zero specifies that the device server shall perform a vendor-specific medium certification opera-
tion to generate a CLIST.
1 A DCRT bit set to one specifies that the device server shall not perform any vendor-specific medium certification process or format veri-
fication operation.
STPF (Stop Format) bit
The stop format (STPF) bit controls the behavior of the device server if one of the following events occurs:
a) The device server has been requested to use the PLIST (i.e., the DPRY bit is set to zero) or the GLIST (i.e., the CMPLST bit is set to zero)
and the device server is not able to locate the list or determine whether the list exists; or
b) The device server has been requested to use the PLIST (i.e., the DPRY bit is set to zero) or the GLIST (i.e., the CMPLST bit is set to zero),
and the device server encounters an error while accessing the defect list.
0 A STPF bit set to zero specifies that, if one or both of these events occurs, the device server shall continue to process the FORMAT UNIT
command. The device server shall return CHECK CONDITION status at the completion of the FORMAT UNIT command with the sense key
set to RECOVERED ERROR and the additional sense code set to either DEFECT LIST NOT FOUND if the condition described in item a)
occurred, or DEFECT LIST ERROR if the condition described in item b) occurred.
1 A STPF bit set to one specifies that, if one or both of these events occurs, the device server shall terminate the FORMAT UNIT command
with CHECK CONDITION status and the sense key shall be set to MEDIUM ERROR with the additional sense code set to either DEFECT
LIST NOT FOUND if the condition described in item a) occurred, or DEFECT LIST ERROR if the condition described in item b) occurred.
[a] See the Extended INQUIRY Data VPD page (see 5.4.9) for the definition of the SPT field.
[b] See the standard INQUIRY data (see 3.6.2) for the definition of the PROTECT bit.
[c] The device server shall format the medium to the block length specified in the mode parameter block descriptor of the mode parameter header (see
5.3.3).
[d] See the READ CAPACITY command (see 3.22.1) for the definition of the P_TYPE field.
[e] The device server shall terminate the command with CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and the additional sense
code set to INVALID FIELD IN PARAMETER LIST.
[f] The device server shall terminate the command with CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and the additional sense
code set to INVALID FIELD IN CDB.
[g] The device server shall format the medium to the block length specified in the mode parameter block descriptor of the mode parameter header plus
eight (e.g., if the block length is 512, then the formatted block length is 520). Following a successful format, the PROT_EN bit in the READ CAPACITY (16)
parameter data (see 3.23.2) indicates whether protection information (see SBC-4) is enabled.
Table 41 FMTPINFO field and PROTECTION FIELDS USAGE field (Sheet 2 of 2)
Device server
indication
Application client
specification
Description
SPT
[a]
PROTECT
[b]
FMTP
INFO
PROTECTION
FIELD USAGE