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devlun showiocount
Example
View the I/O counts of device LUNs.
admin:/diagnose>devlun showiocount Index Phase Start Back good Back Retry Back bad Not back AvgLatency(ms) MaxLatency(js) ----- --------- ----- --------- ---------- -------- -------- -------------- -------------- 2 LUN_ALLOC_READ_PAGE_BEFORE_SEND 5 5 0 0 0 0 0 3 LUN_HANDLE_SCSI_CMD_LOCAL 0 0 0 0 0 0 0 4 LUN_HANDLE_SCSI_CMD_REMOTE 115716 115716 0 0 0 0 1 5 LUN_QOS_HANDLE 115718 115718 0 0 0 0 1 6 LUN_ALLOC_WRITE_PAGE_WORKCTRL 57867 57867 0 0 0 0 1 7 LUN_ALLOC_WRITE_PAGE_NON_WORKCTRL 0 0 0 0 0 0 0 8 LUN_ALLOC_PAGE_SCSI_PRIVATE_READ_LOCAL 0 0 0 0 0 0 0 9 LUN_ALLOC_PAGE_SCSI_PRIVATE_READ_REMOTE 0 0 0 0 0 0 0 10 LUN_IO_TO_PAIR 115725 115712 0 0 13 0 73 11 LUN_INNER_IO 175860 175856 0 0 4 0 0 12 LUN_IO_TO_CACHE 175855 175854 0 0 1 0 37 13 LUN_CACHE_IO_TO_PAIR 0 0 0 0 0 0 0 14 LUN_IO_BYPASS_TO_VOLUME 0 0 0 0 0 0 0 15 LUN_IO_TO_SPC 0 0 0 0 0 0 0 16 LUN_IO_TO_SPC_SPLIT 0 0 0 0 0 0 0 17 LUN_IO_TO_SPC_RETRY 0 0 0 0 0 0 0 18 LUN_SEND_READ_IO_TO_REMOTE 0 0 0 0 0 0 0 19 LUN_SEND_WRITE_IO_TO_REMOTE 0 0 0 0 0 0 0 20 LUN_SEND_WRITE_ALLOC_IO_TO_REMOTE 0 0 0 0 0 0 0 21 LUN_REMOTE_READ 59307 59304 0 0 3 0 36 22 LUN_REMOTE_SCSI_PRIVATE_READ 0 0 0 0 0 0 0 23 LUN_REMOTE_WRITE_ALLOC 59320 59318 0 0 2 0 35 24 LUN_REMOTE_SCSI_PRIVATE_WRITE_ALLOC 0 0 0 0 0 0 0 25 LUN_REMOTE_WRITE 59309 59308 0 0 1 0 37 26 LUN_REMOTE_SCSI_PRIVATE_WRITE 0 0 0 0 0 0 0 27 LUN_REMOTE_RSS_REPAIR_WRITE 0 0 0 0 0 0 0 28 LUN_REMOTE_PVT_MSG 0 0 0 0 0 0 0 29 LUN_ALLOC_ZERO_PAGE_FOR_SUB_EBS 0 0 0 0 0 0 0 30 LUN_SEND_SCSI_PRIVATE_WRITE_TO_REMOTE 0 0 0 0 0 0 0 31 LUN_SEND_SCSI_PRIVATE_READ_TO_REMOTE 5 5 0 0 0 0 0 32 LUN_SEND_SCSI_PRIVATE_WRITE_ALLOC_TO_REMOTE 0 0 0 0 0 0 0 33 LUN_HANG_LIST_IO 0 0 0 0 0 0 0 34 LUN_SUSPEND_LIST_IO 0 0 0 0 0 0 0 35 LUN_ALLOC_IBD_ERR_NUM 0 0 0 0 0 0 0 36 LUN_SEND_DEL_CMD_TO_REMOTE 0 0 0 0 0 0 0 37 LUN_SEND_RSS_REPAIR_WRITE_TO_REMOTE 0 0 0 0 0 0 0 38 LUN_SEND_FULLCOPY_TO_REMOTE 0 0 0 0 0 0 0 39 LUN_IO_TO_FULLCOPY 0 0 0 0 0 0 0 40 LUN_EXTERN_READ_IO 0 0 0 0 0 0 0 41 LUN_EXTERN_WRITE_ALLOC_IO 0 0 0 0 0 0 0 42 LUN_EXTERN_WRITE_IO 0 0 0 0 0 0 0 43 LUN_ALLOC_PAGE_FOR_INJECT_DIF 0 0 0 0 0 0 0 44 LUN_OVERLOAD_CTRL 121301 121301 0 0 0 0 1 45 LUN_LINK_COMPRESS 0 0 0 0 0 0 0 46 LUN_LINK_DECOMPRESS 0 0 0 0 0 0 0 47 LUN_SEND_ABORT_CMD_REQ_TO_REMOTE 0 0 0 0 0 0 0 48 LUN_SEND_RSP_ABORT_CMD_REQ_TO_NON_WORK 0 0 0 0 0 0 0 49 LUN_SEND_FINISH_ABORT_CMD_REQ_TO_REMOTE 0 0 0 0 0 0 0 50 LUN_SEND_RSP_FINISH_ABORT_CMD_REQ_TO_NON_WORK 0 0 0 0 0 0 0 51 LUN_RECV_ABORT_CMD 0 0 0 0 0 0 0 52 LUN_WRITE_ALLOC_WAIT_WRITE 0 0 0 0 0 0 0 53 LUN_SEND_QUERY_IO_TO_REMOTE 0 0 0 0 0 0 0 54 LUN_ALLOC_QUERY_PAGE_NON_WORKCTRL 0 0 0 0 0 0 0 55 LUN_ALLOC_QUERY_PAGE_WORKCTRL 0 0 0 0 0 0 0
System Response
The following table describes the parameter meanings.
Parameter |
Meaning |
|---|---|
| Phase | Phase. |
| Start counter | Number of delivered I/Os. |
| Back good | Number of successful I/Os. |
| Back Bad | Number of failed I/Os. |
| Not back | Number of I/Os that are not returned. |
| AvgLatency(ms) | Average latency (ms). |
| MaxLatency(js) | Maximum latency (jiffies). |
