MDB dcmds

MDB dcmds

 Dcmds for iSER/iscsit are located in usr/src/cmd/mdb/common/modules/idm/idm.c.

 Here's a list of the iSER-related dcmds:

{{{
    ::iscsi_tgt
    Print out information associated with an iscsit target instance.
    Flags:
   -s    Print associated session information
   -c    Print associated connection information
   -a    Print IP addresses with connection information
   -t    Print associated task information
   -g    Print associated TPG information
   -p    Print portals with TPG information
   -b    Print associated buffer information
   -S    Print recent state events and transitions
   -R    Print reference count audit data
   -v    Verbose output about the connection
}}}

 

{{{
    ::iscsi_sess [-bctvIT]
    Print out information associated with an iSCSI session
   -I    Print only initiator sessions
   -T    Print only target sessions
   -c    Print associated connection information
   -a    Print IP addresses with connection information
   -t    Print associated task information
   -b    Print associated buffer information
   -S    Print recent state events and transitions
   -R    Print reference count audit data
   -v    Verbose output about the connection
}}}

 

{{{
    ::iscsi_conn [-btvIT]
    Print out information associated with an iSCSI connection
   -I    Print only initiator connections
   -T    Print only target connections
   -a    Print IP addresses with connection information
   -t    Print associated task information
   -b    Print associated buffer information
   -S    Print recent state events and transitions
   -R    Print reference count audit data
   -v    Verbose output about the connection
}}}

 

{{{
    ::iscsi_task [-bv]
    Print out information associated with an iSCSI task
   -b    Print associated buffer information
   -S    Print recent state events and transitions
   -R    Print reference count audit data
   -v    Verbose output about the connection
}}}

 

{{{
    ::iscsi_refcnt
    Dump an idm_refcnt_t structure
}}}

 

{{{
    ::iscsi_states
    Dump events and state transitions recoreded in an idm_sm_audit_t structure
}}}

 

 Example output:

{{{
   > ::iscsi_conn -tb
    idm_conn_t         Type    State/FFP
    ffffff00ca18eac0    Tgt      5/1     
        Tasks/Active:      Private          Exp SN
        ffffff00e94834f8/1 ffffff00e947f600 00000006
          In buffers:
          Out buffers:
            idm_buf_t                 Mem Rgn/Length    Rel Off Xfer Len Exp. Off
            ffffff00e9485280 ffffff00fc431000/00020000    a0000    20000 000a0000
        ffffff00e9483298/1 ffffff00e947f500 00000001
          In buffers:
          Out buffers:
            idm_buf_t                 Mem Rgn/Length    Rel Off Xfer Len Exp. Off
            ffffff00e9485080 ffffff00fc4d4000/00020000        0    20000 00000000
        ffffff00e9483200/1 ffffff00e947f4c0 00000001
          In buffers:
          Out buffers:
            idm_buf_t                 Mem Rgn/Length    Rel Off Xfer Len Exp. Off
            ffffff00e9485000 ffffff00fc4f5000/00020000        0    20000 00000000
        ffffff00e9483168/1 ffffff00e947f480 00000001
          In buffers:
          Out buffers:
            idm_buf_t                 Mem Rgn/Length    Rel Off Xfer Len Exp. Off
            ffffff00fc225f80 ffffff00fc516000/00020000        0    20000 00000000
}}}

 

 Each line of output representing an object (conn, task, or buffer) begins with the address of that object so that you can use MDB to look at the object in more detail:

{{{
 ffffff00fc225f80 ::print idm_buf_t
}}}