Seagate Barracuda ST11950N, Product Manual

Page: 64 / 94

54 Barracuda 1 and 2 Product Manual, Rev. C
11.3 SCSI interface commands supported
Table 4 lists the SCSI interface commands supported in SCSI-1 and SCSI-2
modes. Barracuda 1 and 2 family drives can be changed back and forth
between SCSI-1 and SCSI-2 modes, using the Change Definition command.
Standard OEM drives are shipped set to operate in SCSI-2 mode.
Table 4. Supported commands
Command Supported by
Command name code SCSI-1 SCSI-2
Change Definition 40h Y Y
Compare 39h N N
Copy 18h N N
Copy and Verify 3Ah N N
Format Unit [1] 04h Y Y
Inquiry 12h Y Y
Date Code Page N Y
Firmware Numbers Page N Y
Implemented Operating Def. Page N Y
Jumper Settings Page N Y
Unit Serial Number Page N Y
Vital Product Data Page N Y
Lock-Unlock Cache 36h N Y
Log Select 4Ch N N
Log Sense 4Dh N N
Mode Select 15h Y Y
Same pages as Mode Sense command
Mode Select (10)
55h N Y
Mode Sense 1Ah Y Y
Caching Parameters Page (08h) N Y
Control Mode Page (0Ah) N Y
Disconnect/Reconnect Control Page (02h) Y Y
Error Recovery Page (01h) Y Y
Format Page (03h) Y Y
Notch and Partition Page (0C) (media zones) N Y
Rigid Disc Drive Geometry Page (04h) Y Y
Unit Attention Page (00h) Y Y
Verify Error Recovery Page (07h) N Y
Mode Sense (10) 5Ah N Y
Not used 42–4Bh N N
Not used 4E–54h N N
Not used 56–59h N N
Not used 5B–5Fh N N
Not used 60–BFh N N
Not used C0–DFh N N
Not used E0–FFh N N
Prefetch 34h N N
continued