Seek Command - Seagate ST11200 Product Manual

Product Manual - Disc Drive SCSI-2/SCSI-3 Interface (Vol. 2; Ver. 2), Rev. E
_____________________________________________________________________________________
If any of the following conditions occur, this command is terminated with a Check Condition status, and if
extended sense is implemented, the Sense Key is set as indicated in the following table. This table does not
provide an exhaustive enumeration of all conditions that may cause the Check Condition status.
Condition
Invalid Logical Block Address
Target reset since last command from this initiator
Note. The extended sense Information Bytes shall be set to the Logical Block Address of the first invalid
address.
5.2.1.6 Seek Command (0Bh)
Bit 7
Byte(s)
0 0
1 Logical Unit No.[1]
0
2
3
4 0
5 0
The Seek command (Table 5.2.1-11) requests that the disc drive seek to the specified logical block address.
For systems which support disconnection, the disc drive disconnects when a valid Seek command is re-
ceived. The use of this command is infrequent since all commands involving data transfer to/from the disc
drive media contain implied seek addresses.
Notes.
[1] The Logical Unit number should be zero.
[2] The maximum Logical Block Address that may be specified for a Seek command is defined in Read
Capacity Data, Section 5.2.2.1.
[3] See "Control Byte" paragraph 4.2.6.
Table 5.2.1-11. Seek Command
6 5
0 0
0 0
0 0
0 0
Sense Key
Volume overflow (see note)
Unit Attention
4 3
0 1
Logical Block Address (MSB)
Logical Block Address
Logical Block Address (LSB)
0 0
0 0
2 1
0 1
[2]
0 0
0 Flag Link [3]
135
0
1
0