SMC-R link group statistics record (subtype 41)
The SMC-R link group statistics record is collected at user-specified intervals. The record provides data about Shared Memory Communications over Remote Direct Memory Access (SMC-R) link groups (one link group specific section per link group) and the SMC-R links within each SMC-R link group (one link specific section per SMC-R link). All link group specific sections are listed contiguously, followed by all link specific sections. The link specific section contains an identifier (SMC-R link group ID) that identifies the SMC-R link group to which the SMC-R link belongs.
Each link group specific or link specific section reports statistical data about the SMC-R link group or SMC-R links for the previous recording interval. For those fields that provide an interval value, to determine a cumulative value for the particular statistic, add the values reported for the statistic in the individual SMC-R link group and SMC-R link statistics interval records. Other fields provide the current or highest value of a statistic and are not interval values. If SMC-R link group statistics recording is turned off dynamically, or the TCP stack terminates, a final SMC-R statistics record is generated to report closing data. If a particular SMC-R link group or SMC-R link is ended during a recording interval, any data related to that link group or link during the recording interval is lost and is not reported in the next interval record.
See Table 1 for the contents of the TCP/IP stack identification section. For the SMC-R link group statistics record, the TCP/IP stack identification section indicates SMCR as the subcomponent and one of the six possible interval record reason settings, depending on whether the reporting is because of interval expiration, statistics collection termination, or collection shutdown, and whether one or more physical records are needed to report all the SMC-R link group statistics.
| Offset | Name | Length | Format | Description |
|---|---|---|---|---|
| 0(X'0') | Standard SMF Header | 24 | Standard SMF header; subtype is 41(X'29') | |
| Self-defining section | ||||
| 24(X'18') | SMF119SD_TRN | 2 | Binary | Number of triplets in this record (3) |
| 26(X'1A') | 2 | Binary | Reserved | |
| 28(X'1C') | SMF119IDOff | 4 | Binary | Offset to TCP/IP identification section |
| 32(X'20') | SMF119IDLen | 2 | Binary | Length of TCP/IP identification section |
| 34(X'22') | SMF119IDNum | 2 | Binary | Number of TCP/IP identification sections |
| 36(X'24') | SMF119S1Off | 4 | Binary | Offset to first SMC-R link group specific section |
| 40(X'28') | SMF119S1Len | 2 | Binary | Length of each SMC-R link group specific section |
| 42(X'2A') | SMF119S1Num | 2 | Binary | Number of SMC-R link group specific sections |
| 44 (X'2C') | SMF119S2Off | 4 | Binary | Offset to first SMC-R link specific section |
| 48 (X'30') | SMF119S2Len | 2 | Binary | Length of each SMC-R link specific section |
| 50 (X'32') | SMF119S2Num | 2 | Binary | Number of SMC-R link specific sections |
Table 2 shows the SMC-R link group specific section:
| Offset | Name | Length | Format | Description |
|---|---|---|---|---|
| 0(X'0') | SMF119SM_GSDuration | 8 | Binary | Duration of stack recording interval |
| 8(X'8') | SMF119SM_GSLnkGrpId | 3 | Binary | SMC-R link group ID |
| 11(X'B') | 1 | Binary | Reserved | |
| 12(X'C') | SMF119SM_GSRcvBufTotal | 4 | Binary | Current total amount of fixed 64-bit storage allocated for SMC-R inbound processing |
| 16(X'10') | SMF119SM_GS32BufTotal | 4 | Binary | Current amount of fixed 64-bit storage allocated in 32-KB blocks for SMC-R inbound processing |
| 20(X'14') | SMF119SM_GS64BufTotal | 4 | Binary | Current amount of fixed 64-bit storage allocated in 64-KB blocks for SMC-R inbound processing |
| 24(X'18') | SMF119SM_GS128BufTotal | 4 | Binary | Current amount of fixed 64-bit storage allocated in 128-KB blocks for SMC-R inbound processing |
| 28(X'1C') | SMF119SM_GS256BufTotal | 4 | Binary | Current amount of fixed 64-bit storage allocated in 256-KB blocks for SMC-R inbound processing |
| 32(X'20') | SMF119SM_GSOthBufTotal | 4 | Binary | Current amount of fixed 64-bit storage allocated in blocks greater than 256 KB for SMC-R inbound processing |
| 36(X'24') | SMF119SM_GSRcvBufTotal_hwi | 4 | Binary | Highest amount of total fixed 64-bit storage allocated for SMC-R inbound processing at any time during this interval |
| 40(X'28') | SMF119SM_GS32BufTotal_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 32-KB blocks for SMC-R inbound processing at any time during this interval |
| 44(X'2C') | SMF119SM_GS64BufTotal_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 64-KB blocks for SMC-R inbound processing at any time during this interval |
| 48(X'30') | SMF119SM_GS128BufTotal_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 128-KB blocks for SMC-R inbound processing at any time during this interval |
| 52(X'34') | SMF119SM_GS256BufTotal_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 256-KB blocks for SMC-R inbound processing at any time during this interval |
| 56(X'38') | SMF119SM_GSOthBufTotal_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in blocks greater than 256 KB for SMC-R inbound processing at any time during this interval |
| 60(X'3C') | 4 | Binary | Reserved | |
| 64(X'40') | SMF119SM_GSPNetID | 16 | EBCDIC | Physical network ID |
| Offset | Name | Length | Format | Description |
|---|---|---|---|---|
| 0 (X'0') | SMF119SM_LSDuration | 8 | Binary | Duration of stack recording interval |
| 8(X'8') | SMF119SM_LSLclLnkId | 4 | Binary | Local SMC-R link ID |
| 12(X'C') | SMF119SM_LSRmtLnkId | 4 | Binary | Remote SMC-R link ID |
| 16(X'10') | SMF119SM_LSLclGID | 16 | Binary | Local GID |
| 32(X'20') | SMF119SM_LSRmtGID | 16 | Binary | Remote GID |
| 48(X'30') | SMF119SM_LSLclMACAddr | 6 | Binary | Local MAC address |
| 54(X'36') | SMF119SM_LSRmtMACAddr | 6 | Binary | Remote MAC address |
| 60(X'3C') | 2 | Binary | Reserved | |
| 62(X'3E') | SMF119SM_LSMTU | 2 | Binary | MTU size |
| 64(X'40') | SMF119SM_LSVLANId | 2 | Binary | VLAN ID |
| 66(X'42') | SMF119SM_LSLclQP | 3 | Binary | Local queue pair (QP) |
| 69(X'45') | SMF119SM_LSRmtQP | 3 | Binary | Remote QP |
| 72(X'48') | SMF119SM_LSLnkGrpId | 3 | Binary | SMC-R link group ID |
| 75(X'4B') | 1 | Binary | Reserved | |
| 76(X'4C') | SMF119SM_LSIntfIndex | 4 | Binary | Interface index |
| 80(X'50') | SMF119SM_LSIntfName | 16 | EBCDIC | Interface name |
| 96(X'60') | SMF119SM_LSBytesIn | 8 | Binary | Bytes received across this SMC-R link |
| 104(X'68') | SMF119SM_LSInOperations | 8 | Binary | Inbound operations across this SMC-R link |
| 112(X'70') | SMF119SM_LSBytesOut | 8 | Binary | Bytes sent across this SMC-R link |
| 120(X'78') | SMF119SM_LSOutOperations | 8 | Binary | Outbound operations across this SMC-R link |
| 128(X'80') | SMF119SM_LSTCPConnTotal | 4 | Binary | Total number of TCP connections established across this SMC-R link |
| 132(X'84') | SMF119SM_LSTCPConnCurr | 4 | Binary | Current number of TCP connections across this SMC-R link |
| 136(X'88') | SMF119SM_LSTCPConn_hwi | 4 | Binary | Highest number of TCP connections that were active at one time across this SMC-R link during this interval |
| 140(X'8C') | SMF119SM_LSRcvBufInuse | 4 | Binary | Current amount of fixed 64-bit storage that is in use for inbound processing |
| 144(X'90') | SMF119SM_LS32BufInuse | 4 | Binary | Current amount of fixed 64-bit storage allocated in 32-KB blocks that is in use for inbound processing |
| 148(X'94') | SMF119SM_LS64BufInuse | 4 | Binary | Current amount of fixed 64-bit storage allocated in 64-KB blocks that is in use for inbound processing |
| 152(X'98') | SMF119SM_LS128BufInuse | 4 | Binary | Current amount of fixed 64-bit storage allocated in 128-KB blocks that is in use for inbound processing |
| 156(X'9C') | SMF119SM_LS256BufInuse | 4 | Binary | Current amount of fixed 64-bit storage allocated in 256-KB blocks that is in use for inbound processing |
| 160(X'A0') | SMF119SM_LSOthBufInuse | 4 | Binary | Current amount of fixed 64-bit storage allocated in blocks greater than 256 KB that is in use for inbound processing |
| 164(X'A4') | SMF119SM_LSRcvBufInuse_hwi | 4 | Binary | Highest amount of total fixed 64-bit storage that was in use for outbound processing in this interval |
| 168(X'A8') | SMF119SM_LS32BufInuse_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 32-KB blocks that was in use for outbound processing in this interval |
| 172(X'AC') | SMF119SM_LS64BufInuse_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 64-KB blocks that was in use for outbound processing in this interval |
| 176(X'B0') | SMF119SM_LS128BufInuse_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 128-KB blocks that was in use for outbound processing in this interval |
| 180(X'B4') | SMF119SM_LS256BufInuse_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in 256-KB blocks that was in use for outbound processing in this interval |
| 184(X'B8') | SMF119SM_LSOthBufInuse_hwi | 4 | Binary | Highest amount of fixed 64-bit storage allocated in blocks greater than 256 KB that was in use for outbound processing in this interval |
| 188(X'BC') | 4 | Binary | Reserved |