Verify Command Descriptor Block-Data Format; Verify Command-Field Descriptions - Maxtor ATLAS 10K III Product Manual

The VERIFY command verifies the data on the medium for the Logical Block
Address range specified. The data format and field descriptions are shown in Table 5-
210 and Table 5-211 respectively.
T a b l e 5 - 2 1 0 VERIFY Command Descriptor Block-Data Format
$ K V
 
$ [ V G
0
1 Reserved
2 - 5
6
7 - 8
9
T a b l e 5 - 2 1 1 VERIFY Command-Field Descriptions
( K G N F
Disable Page Out. When the value of the field = 1, the device server will assign
the logical blocks accessed by this command the lowest priority for being
DPO fetched into or retained by the cache.
When DPO = 0, the priority will be determined by fields in the Caching page.
Byte Check. When the value is 1, the drive performs a byte-by-byte comparison
of the data on the medium with the data sent by the initiator in the data-out buff-
er transfer.
BytChk
When 0, the drive performs a medium verification with no data comparison. In
this case, no data is sent by the initiator.
RelAdr Relative Address. This feature is not supported;
Logical
Block The address of the first logical sector to be verified.
Address
Verifica- The number of contiguous sectors that are to be verified. The drive returns a
tion CHECK CONDITION status with the correct sense data if the specified transfer
Length extends beyond out of the logical sector space.
  
Operation Code (2Fh)
DPO Reserved
Logical Block Address
Reserved
Verification Length
Control
& G U E T K R V K Q P
SCSI Description
 
BytChk RelAdr
V J G H K G N F O W U V D G  
Maxtor Atlas 10K III

5-169