10.2Dual port support
Cheetah 15K.7 SAS drives have two independent ports. These ports may be connected in the same or differ- ent SCSI domains. Each drive port has a unique SAS address.
The two ports have the capability of independent port clocking (e.g. both ports can run at 6Gbit/sec or the first port can run at 6Gbit/sec while the second port runs at 3Gbit/sec.) The supported link rates are 1.5, 3.0, or 6.0 Gbits/sec.
Subject to buffer availability, the Cheetah 15K.7 drives support:
•Concurrent port
Full
10.3SCSI commands supported
Table 19 lists the SCSI commands supported by Cheetah 15K.7 drives.
Table 19: Commands supported by Cheetah 15K.6 SAS family drives
Command name | Command code | Supported |
|
|
|
Change Definition | 40h | N |
|
|
|
Compare | 39h | N |
|
|
|
Copy | 18h | N |
|
|
|
Copy and Verify | 3Ah | N |
|
|
|
Format Unit [1] | 04h | Y |
|
|
|
DPRY bit supported |
| N |
|
|
|
DCRT bit supported |
| Y |
|
|
|
STPF bit supported |
| Y |
|
|
|
IP bit supported |
| Y |
|
|
|
DSP bit supported |
| Y |
|
|
|
IMMED bit supported |
| Y |
|
|
|
VS (vendor specific) |
| N |
|
|
|
Inquiry | 12h | Y |
|
|
|
Date Code page (C1h) |
| Y |
|
|
|
Device Behavior page (C3h) |
| Y |
|
|
|
Firmware Numbers page (C0h) |
| Y |
|
|
|
Implemented Operating Def page (81h) |
| Y |
|
|
|
Jumper Settings page (C2h) |
| Y |
|
|
|
Supported Vital Product Data page (00h) |
| Y |
|
|
|
Unit Serial Number page (80h) |
| Y |
|
|
|
36h | N | |
|
|
|
Log Select | 4Ch | Y |
|
|
|
PCR bit |
| Y |
|
|
|
DU bit |
| N |
|
|
|
DS bit |
| Y |
|
|
|
44 | Cheetah 15K.7 SAS Product Manual, Rev. A |