pair showcounter
Function
Usage Guidelines
If the pair module is abnormal, you can run this command to view the count of asynchronous ports of the pair module.
Example
View the count of asynchronous pair ports.
admin:/diagnose>pair showcounter Name Start Back Good Back Retry Back Bad Not Back avgLatency maxLatency occurTime -------------------------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------------- Copy Read Page to Write 0 0 0 0 0 0 0 ---- Get Log 12 12 0 0 0 0 0 ---- Get One Log 0 0 0 0 0 0 0 ---- Alloc Log Mutex 12 12 0 0 0 0 0 ---- Free Log Mutex 12 12 0 0 0 0 0 ---- Write Dcl Record 0 0 0 0 0 0 0 ---- Delete Dcl Record 0 0 0 0 0 0 0 ---- Dcl accessor get next chunk 0 0 0 0 0 0 0 ---- Cache accessor get next chunk 0 0 0 0 0 0 0 ---- Share tree accessor get next chunk 0 0 0 0 0 0 0 ---- Private tree accessor get next chunk 0 0 0 0 0 0 0 ---- Union accessor get next chunk 530070 530070 0 0 0 0 0 ---- Union accessor get chunk bitmap 0 0 0 0 0 0 0 ---- Union accessor chunk copy done 249357 249357 0 0 0 0 0 ---- Mix accessor get next chunk 176691 176691 0 0 0 0 0 ---- Mix accessor get chunk bitmap 0 0 0 0 0 0 0 ---- Remote accessor get next chunk 4 4 0 0 0 1 0 ---- Remote accessor get chunk bitmap 0 0 0 0 0 0 0 ---- Remote accessor chunk copy done 2 2 0 0 0 7 0 ---- Pair remote chunk delete all 0 0 0 0 0 0 0 ---- slave accessor get next chunk 0 0 0 0 0 0 0 ---- slave accessor get chunk bitmap 0 0 0 0 0 0 0 ---- slave accessor chunk copy done 0 0 0 0 0 0 0 ---- Pair init receive get next data 0 0 0 0 0 0 0 ---- Pair get data form init Accessor 0 0 0 0 0 0 0 ---- Init Accessor receive get next data 0 0 0 0 0 0 0 ---- Init Accessor list Object from space 0 0 0 0 0 0 0 ---- Init Accessor get data from space 0 0 0 0 0 0 0 ---- Init Accessor copy read to write 0 0 0 0 0 0 0 ---- Resync get next data 0 0 0 0 0 0 0 ---- Resync get next chunk 176699 176699 0 0 0 0 0 ---- Resync get next data form Accessor 0 0 0 0 0 0 0 ---- accessor getnextchunk data 0 0 0 0 0 0 0 ---- Hang Queue Counter 0 0 0 0 0 0 0 ---- UnHang Queue Counter 0 0 0 0 0 0 0 ---- Hang Pair Counter 6 6 0 0 0 0 0 ---- UnHang Pair Counter 6 6 0 0 0 0 0 ---- create master accessor 4 4 0 0 0 0 0 ---- create slave accessor 0 0 0 0 0 0 0 ---- delete accessor 0 0 0 0 0 0 0 ---- pair clear sync progress 0 0 0 0 0 0 0 ---- notify pair sync complete 0 0 0 0 0 0 0 ---- init sync open obj num 0 0 0 0 0 0 0 ---- init sync close obj num 0 0 0 0 0 0 0 ---- pair add req to filter 558573 558573 0 0 0 0 0 ---- pair get host concurrent 558573 558573 0 0 0 0 0 ---- pair dlm lock 0 0 0 0 0 0 0 ---- pair opt lock 558573 558573 0 0 0 0 0 ---- pair add req to queue 558575 558575 0 0 0 0 7080 2018-07-27 15:29:39 pair get Log concurrent 558575 558575 0 0 0 0 0 ---- write Log 558575 558575 0 0 0 0 0 ---- rollback before write 0 0 0 0 0 0 0 ---- pair write master lun 558575 558575 0 0 0 0 10212 2018-07-27 15:29:39 Copy Write Page to Write 615602 615602 0 0 0 0 0 ---- pair per write slave lun 615602 558516 57022 0 64 46 12377 2018-07-27 15:29:39 pair total write slave lun 558582 558518 0 0 64 51 21553 2018-07-27 15:30:29 pair high pri write slave lun 0 0 0 0 0 0 0 ---- merge Log 0 0 0 0 0 0 0 ---- free Log 558518 558518 0 0 0 0 0 ---- pair dlm unlock 0 0 0 0 0 0 0 ---- pair hold req 0 0 0 0 0 0 0 ---- pair return busy when hang 0 0 0 0 0 0 0 ---- pair read lun 0 0 0 0 0 0 0 ---- pair query bitmap 0 0 0 0 0 0 0 ---- pair trans write 0 0 0 0 0 0 0 ---- Recover log 12 12 0 0 0 0 0 ---- BackGroup Op 0 0 0 0 0 0 0 ---- Bgr log2dcl Op 0 0 0 0 0 0 0 ---- Start merge serv 6 6 0 0 0 0 0 ---- Stop merge serv 0 0 0 0 0 0 0 ---- Start bgr serv 6 6 0 0 0 0 0 ---- Stop bgr serv 0 0 0 0 0 0 0 ---- Create atomic 0 0 0 0 0 0 0 ---- Stop atomic 0 0 0 0 0 0 0 ---- Get next replay log 0 0 0 0 0 0 0 ---- Replay log 0 0 0 0 0 0 0 ---- Delete replay log 0 0 0 0 0 0 0 ---- get one iolog 0 0 0 0 0 0 0 ---- delete one lognode 0 0 0 0 0 0 0 ---- Pair try ilock 0 0 0 0 0 0 0 ---- Pair apply ilock 0 0 0 0 0 0 0 ---- Pair cancel ilock 0 0 0 0 0 0 0 ---- Pair release ilock 0 0 0 0 0 0 0 ---- Pair test ilock 0 0 0 0 0 0 0 ---- Abort rollback read src data 0 0 0 0 0 0 0 ---- Abort rollback read to write 0 0 0 0 0 0 0 ---- PAIR_ROLLBACK_WRITE_SLAVE 0 0 0 0 0 0 0 ---- create iterator 0 0 0 0 0 0 0 ---- delete iterator 0 0 0 0 0 0 0 ---- Pair counter for delete pair 0 0 0 0 0 0 0 ---- create snap session 0 0 0 0 0 0 0 ---- destroy snap session 0 0 0 0 0 0 0 ---- query snap diff 0 0 0 0 0 0 0 ---- Pair create catchup 0 0 0 0 0 0 0 ---- Pair stop catchup 3 3 0 0 0 0 0 ---- Pair update log 0 0 0 0 0 0 0 ---- Pair get catchup log 0 0 0 0 0 0 0 ---- Pair delete catchup log 0 0 0 0 0 0 0 ---- Pair clear mem log 0 0 0 0 0 0 0 ----
System Response
The following table describes the parameter meanings.
Parameter |
Meaning |
|---|---|
| Start | Count of I/Os to the module. |
| Back Good | Count of I/Os that successfully return. |
| Back Retry | Count of I/Os for which a retry message is returned. |
| Back Bad | Count of I/Os that unsuccessfully return. |
| Not Back | Count of I/Os that do not return. |
| avgLatency | Average latency. |
| maxLatency | Maximum latency. |
| occurTime | Point in time when the maximum latency occurs. |
| Copy Read Page to Write | Count of copying a read page to a write page. |
| Get Log | Count of obtained logs. |
| Get One Log | Reads a log. |
| Alloc Log Mutex | Applies for mutually exclusive locks for logs. |
| Free Log Mutex | Releases mutually exclusive locks for logs. |
| Write Dcl Record | Count of inserted DCL records. |
| Delete Dcl Record | Count of deleted DCL records. |
| Query Dcl Record | Count of queried DCL records. |
| MAP tree accessor get next chunk | Count of mapping tree query records. |
| Union accessor get next chunk | Count of union accessor query records. |
| Union accessor get chunk bitmap | Count of union accessor query bitmaps. |
| Union accessor chunk copy done | Count of done union accessor copies. |
| Mix accessor get next chunk | Count of mix accessor query records. |
| Mix accessor get chunk bitmap | Count of mix accessor query bitmaps. |
| Remote accessor get next chunk | Count of remote accessor query records. |
| Remote accessor get chunk bitmap | Count of remote accessor query bitmaps. |
| Remote accessor chunk copy done | Count of done remote accessor copies. |
| slave accessor get next chunk | Count of standby accessor query records. |
| slave accessor get chunk bitmap | Count of standby accessor query bitmaps. |
| slave accessor chunk copy done | Count of done standby accessor copies. |
| Pair init receive get next data | Count of initial pair receiving and query records. |
| Pair get data form init Accessor | Count of data queries from the initial synchronization accessor. |
| Init Accessor receive get next data | Count of query receiving records by the initial synchronization accessor. |
| Init Accessor list Object from space | Count of objects obtained from space by the initial synchronization accessor. |
| Init Accessor get data from space | Amount of data obtained from space by the initial synchronization accessor. |
| Init Accessor copy read to write | Amount of data copy to the write pages by the initial synchronization accessor. |
| Resync get next data | Amount of data queried by incremental synchronization. |
| Resync get next chunk | Count of data query records by incremental synchronization. |
| Resync get next data form Accessor | Amount of data queried from the accessor by incremental synchronization. |
| accessor getnextchunk data | Amount of data queried by the accessor. |
| Hange Queue Counter | Count of pair's hanging of the queue. |
| UnHang Queue Counter | Count of pair's unhanging of the queue. |
| Hang Pair Counter | Count of pair's hanging of the pair. |
| UnHang Pair Counter | Count of pair's unhanging of the pair. |
| create master accessor | Count of created active accessors. |
| create slave accessor | Count of created standby accessors. |
| delete accessor | Count of delete accessor. |
| pair clear sync progress | Count of cleared synchronous progresses. |
| notify pair sync complete | Count of pair copy completion notifications. |
| init sync open obj num | Count of objects opened by initial synchronization. |
| init sync close obj num | Count of objects closed by initial synchronization. |
| pair add req to filter | Count of REQs added to the filter. |
| pair get host concurrent | Count of concurrent host I/O operations. |
| pair dlm lock | Count of dlm locks. |
| pair add req to queue | Count of REQs added to the queue. |
| pair get Log concurrent | Count of concurrent log operations. |
| Write Log | Count of written logs. |
| rollback before write | Count of I/Os that rollback before write. |
| pair write master lun | Count of REQs written to the active node by the pair. |
| Copy Write Page to Write | Count of copying a write page to another write page. |
| pair per write slave lun | Count of REQs written to standby node by the pair. |
| pair total write slave lun | Total count of REQs written to standby node by the pair. |
| merge Log | Count of merge log. |
| free log | Count of deleted logs. |
| pair dlm unlock | Count of dlm unlocks. |
| pair hold req | Count of pair hold REQs. |
| pair return busy when hang | Count that REQs to which busy is returned. |
| Abort rollback read src data | Count of active node data reading by the abort process. |
| Abort rollback read to write | Count of page reading by the abort process. |
| Recover log | Count of restoring logs from LOGZONE to the memory. |
| Pair counter for delete pair | Count of pair deletions. |
| BackGroup Op | Count of background transferring of logs in a DS to DCL. |
| Bgr log2dcl Op | Count of background transferring of a log to the DCL. |
| Start merge serv | Starts services. |
| Stop merge serv | Stops services. |
| Start bgr serv | Starts background services. |
| Stop bgr serv | Stops background services. |
| Create atomic | Creates the atomic copy task. |
| Stop atomic | Stops the atomic copy task. |
| Get next replay log | Obtains the next replay log. |
| Replay log | Replays the log. |
| Delete replay log | Deletes the replay log. |
| Alloc Log Mutex | Applies for the log lock. |
| Free Log Mutex | Releases the log lock. |
| get one iolog | Obtains an I/O log. |
| delete one lognode | Deletes a log node. |
| Pair try ilock | Pair applies for synchronous ilock. |
| Pair apply ilock | Pair applies for asynchronous ilock. |
| Pair release ilock | Pair releases the ilock. |
| Pair cancel ilock | Pair cancels the ilock. |
| Pair test ilock | Pair tests the ilock. |
| Pair_create_catchup | Creates a catchup task. |
| Pair_stop_catchup | Stops the catchup task. |
| Pair_update_log | Updates logs. |
| Pair_get_catchup_log | Obtains catchup logs. |
| Pair_delete_catchup_log | Deletes catchup logs. |
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