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LU 6.2 Information

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Information on LUs is provided in the lu62_info_sect structure as defined below.

Syntax

typedef struct lu62_info_sect {  
    unsigned long  lu62_init_sect_len;  
    unsigned short num_lu62s;  
    unsigned short total_lu62s;  
} LU62_INFO_SECT;

Members

lu62_init_sect_len
Structure length.

num_lu62s
Number of configured LUs displayed.

total_lu62s
Total number of configured LUs.

For each configured LU, an lu62_overlay structure is provided as defined below.

typedef struct lu62_overlay {  
    unsigned long  lu62_entry_len;  
    unsigned long  lu62_overlay_len;  
    unsigned char  lu_name[8];  
    unsigned char  lu_alias[8];  
    unsigned short num_plus;  
    unsigned char  fqlu_name[17];  
    unsigned char  default_lu;  
    unsigned char  reserv3;  
    unsigned char  lu_local_addr;  
    unsigned short lu_sess_lim;  
    unsigned char  max_tps;  
    unsigned char  lu_type;  
} LU62_OVERLAY;

The lu62_overlay structure contains the following members:

lu62_entry_len
Size of this LU entry.

lu62_overlay_len
This value contains sizeof(struct lu62_overlay)–sizeof(lu62_entry_len).

lu_name
LU name (EBCDIC type A).

lu_alias
LU alias (ASCII).

num_plus
Number of partner LUs.

fqlu_name
Fully qualified LU name (EBCDIC type A).

default_lu
For local LU group, an LU equal to the default_lu is used if none is specified. Legal values are AP_NO and AP_YES.

On Host Integration Server, there is no concept of a default local LU. Therefore, the default_lu flag, which is set to AP_YES for the node in IBM ES for OS/2 version 1.0, is set to AP_NO for Host Integration Server.

lu_local_addr
NAU address, 0–254.

lu_sess_lim
Configured session limit, 0–255.

max_tps
Maximum number of TPs, 1–255.

lu_type
Always LU type 6.2.

For each configured LU, a plu_62_overlay structure for the partner LU is provided as defined below.

typedef struct plu62_overlay {  
    unsigned long  plu62_entry_len;  
    unsigned long  plu62_overlay_len;  
    unsigned char  plu_alias[8];  
    unsigned short num_modes;  
    unsigned char  plu_un_name[8];  
    unsigned char  fqplu_name[17];  
    unsigned char  reserv3;  
    unsigned char  plu_sess_lim;  
    unsigned char  dlc_name[8];  
    unsigned char  adapter_num;  
    unsigned char  dest_addr_len;  
    unsigned char  dest_addr[32];  
    unsigned int   par_sess_supp:1;  
    unsigned int   reserv4:7;  
    unsigned int   def_already_ver:1;  
    unsigned int   def_conv_sec:1;  
    unsigned int   def_sess_sec:1;  
    unsigned int   reserv5:5;  
    unsigned int   act_already_ver:1;  
    unsigned int   act_conv_sec:1;  
    unsigned int   reserv6:6;  
    unsigned int   implicit_part:1;  
    unsigned int   reserv7:7;  
} PLU62_OVERLAY;

The plu_62_overlay structure for the partner LU contains the following members:

plu62_entry_len
Size of this partner LU entry.

plu62_overlay_len
This value contains sizeof(struct plu62_overlay)–sizeof(plu62_entry_len).

plu_alias
Partner LU alias (ASCII).

num_modes
Number of modes.

plu_un_name
Partner LU uninterpreted name (EBCDIC).

fqplu_name
Fully qualified partner LU name (EBCDIC type A).

reserv3
Reserved field set to zero.

plu_sess_lim
Partner LU session limit, 0–255.

dlc_name
DLC name (ASCII).

adapter_num
DLC adapter number.

dest_addr_len
Length of destination adapter address.

dest_addr
Destination adapter address.

par_sess_supp
Bit 15 of a bitfield specifying parallel sessions. Valid values are AP_NOT_SUPPORTED and AP_SUPPORTED.

reserv4
Bits 8–14 of a bitfield specifying a reserved field set to zero.

def_already_ver
Bit 7 of a bitfield specifying whether the configured already verified option is supported. Valid values are AP_NOT_SUPPORTED and AP_SUPPORTED.

def_conv_sec
Bit 6 of a bitfield specifying whether the configured conversation security option is supported. Valid values are AP_NOT_SUPPORTED and AP_SUPPORTED.

def_sess_sec
Bit 5 of a bitfield specifying whether the configured session security option is supported. Valid values are AP_NOT_SUPPORTED and AP_SUPPORTED.

reserv5
Bits 0–4 of a bitfield specifying a reserved field set to zero.

act_already_ver
Bit 15 of a bitfield specifying whether the active already verified option is supported. Valid values are AP_NOT_SUPPORTED and AP_SUPPORTED.

act_conv_sec
Bit 14 of a bitfield specifying whether the active conversation security option is supported. Valid values are AP_NOT_SUPPORTED and AP_SUPPORTED.

reserv6
Bits 8–13 of a bitfield specifying a reserved field set to zero.

implicit_part
Bit 7 of a bitfield specifying whether this is an implicit partner. Valid values are AP_NO and AP_YES.

For partner LU group, implicit_part indicates the partner LU group was configured as an implicit primary logical unit (PLU).

reserv7
Bits 0–6 of a bitfield specifying a reserved field set to zero.

Remarks

Host Integration Server returns information on all the configured LU 6.2s in the system, including the implicit PLU and all instances of implicit modes. IBM ES for OS/2 version 1.0 only returns information on those that are in use or have been in use.

For partner LU group, implicit_part indicates the partner LU group was configured as an implicit primary logical unit (PLU).

For mode group, implicit_mode bitfield returned in the mode_overlay structure indicates the mode group was configured as an implicit mode.