Report Target Port Groups (A3h)
Report Target Port Groups (A3h) returns the Target Port Group data for all ports.
- Service Action
-
0Ah
- Allocation Length
-
The length of the parameter list the library returns. The library transfers either the number of bytes specified by the Allocation Length field or all of the available Report Target Port Group data, whichever is less. The maximum allocation length is 20h (32d) bytes.
Target Port Group Descriptor Data
- PREF
-
0 = The target port group is not a preferred target port
1 = The target port group is a preferred target port. All ports in the Active/Optimized group are preferred.
- Asymmetric Access State
-
0h = Active/Optimized — the ports in the group are fully operational.
3h = Unavailable — The library does not have the redundant control paths (multi-port) activation file installed.
- T_Sup
-
0 = The library does not support the transitioning asymmetric access state.
- U_Sup
-
0 = The library does not support the unavailable asymmetric access state.
1 = The library supports the unavailable asymmetric access state.
- S_Sup
-
0 = The library does not support the standby asymmetric access state.
- AN_Sup
-
0 = The library does not support the active/non-optimized asymmetric access state.
- AO_Sup
-
0 = The library does not support the active/optimized asymmetric access state.
1 = The library supports the active/optimized asymmetric access state.
- Target Port Group
-
00h = Target Port Group 0
01h = Target Port Group 1
- Status Code
-
2 = The target port group asymmetric access state is altered by implicit asymmetrical logical unit access behavior.
- Target Port Group Count
-
The number of target ports that are in the target port group and the number of target port descriptors in the target port group descriptor. This can range from 1 to 2.
