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cache show iocounter
Example
View the counts of common I/Os in caches.
ibc_os_hs:/diagnose>cache show iocounter
>> Counter << Start Back Good Back Bad Back Retry Not Back
------------ ------------ ------------ ------------ ------------
read alloc : 0 0 0 0 0
volume read : 146951561 146951467 0 0 94
volume read through : 0 0 0 0 0
volume read disk : 73733516 73733419 0 0 97
space read : 920341 919909 432 0 0
space read through : 0 0 0 0 0
space read disk : 2329 1897 432 0 0
stripe read : 639657050 639656843 0 31 176
stripe read through : 0 0 0 0 0
stripe read disk : 639085915 639085739 0 0 176
mirror read peer : 17 17 0 0 0
mirror read peer recv : 0 0 0 0 0
space write : 70168 70155 0 13 0
space write commit log mission : 70176 70176 0 0 0
space write commit log : 70176 70176 0 0 0
write alloc : 0 0 0 0 0
volume write : 1064960 1064960 0 0 0
volume write child : 1064960 1064960 0 0 0
volume write child alloc quota : 1105519 1064960 0 40559 0
volume write child write mirror : 1064960 1064960 0 0 0
stripe write : 4918975 4918975 0 0 0
stripe write child : 5074854 5074854 0 0 0
stripe write child alloc quota : 5074854 5074854 0 0 0
stripe write child write mirror : 5074854 5074854 0 0 0
write dirty parity : 375594 375562 0 32 0
chunk write with dsg : 0 0 0 0 0
write local chunk : 6139814 6139814 0 0 0
write through wait destage : 0 0 0 0 0
mirror writevolume : 1135128 1135119 0 9 0
mirror writevolume recv : 579587 579587 0 0 0
mirror writestripe : 5074854 5074854 0 0 0
mirror writestripe recv : 15940487 15940487 0 0 0
mirror writestripe quota : 15940487 15940487 0 0 0
mirror merger : 0 0 0 0 0
mirror merger recv : 0 0 0 0 0
mirror write parity : 375562 375562 0 0 0
mirror write parity recv : 123294 123294 0 0 0
open cache dnode : 105055 105055 0 0 0
rollback write dirty : 0 0 0 0 0
rollback write clean : 0 0 0 0 0
mir rollback write clean : 0 0 0 0 0
mir rollback write clean recv : 0 0 0 0 0
destage mission : 500857 500845 0 12 0
volume wb destage mission : 500857 500845 0 12 0
volume wt destage mission : 0 0 0 0 0
volume force destage mission : 0 0 0 0 0
volume wt fault destage mission : 0 0 0 0 0
volume destage alloc concurrent : 500845 500845 0 0 0
volume destage send to volume : 545489 545489 0 0 0
stripe wb destage mission : 379097 379097 0 0 0
stripe wt destage mission : 0 0 0 0 0
stripe force destage mission : 615 615 0 0 0
stripe destage alloc concurrent : 0 0 0 0 0
stripe destage send to ckg : 0 0 0 0 0
space dsg tx : 31794 31794 0 0 0
space dsg to space : 43484 43484 0 0 0
space dsg check dmn : 0 0 0 0 0
file system mirror delete : 42468 42468 0 0 0
file system mirror delete recv : 38664 38664 0 0 0
mirror fs send bp : 0 0 0 0 0
mirror fs send bp recv : 0 0 0 0 0
mirror delete : 174099 174099 0 0 0
mirror delete recv : 313187 313187 0 0 0
mirror del clean : 0 0 0 0 0
mirror del clean rcv : 0 0 0 0 0
mirror del clean exec : 0 0 0 0 0
del mir spec data : 4970 4970 0 0 0
del mir spec data recv : 1002 1002 0 0 0
del spec data : 5972 5972 0 0 0
force mirror : 0 0 0 0 0
force mirror recv : 2279 2279 0 0 0
sync obj info : 0 0 0 0 0
sync obj info recv : 2 2 0 0 0
mirror recover writehole log : 0 0 0 0 0
mirror recover writehole log rcv: 0 0 0 0 0
mirror byte del : 11072 11072 0 0 0
mirror byte del recv : 1960 1960 0 0 0
mirror op other : 0 0 0 0 0
mirror op other rcv : 0 0 0 0 0
delete smart cache data : 0 0 0 0 0
write smart cache data : 0 0 0 0 0
read smart cache data : 0 0 0 0 0
cover write smart cache data : 0 0 0 0 0
version negotiate : 0 0 0 0 0
version negotiate rcv : 0 0 0 0 0
stripe crc dif : 4918975 4918975 0 0 0
stripe lba dif : 828751 828751 0 0 0
recover writehole : 0 0 0 0 0
System Response
The following table describes the parameter meanings.
Parameter |
Meaning |
|---|---|
| Counter | I/O counter. |
| Difference | I/O counter. |
| Counter History | I/O counter. |
| Start | Count of started I/Os. |
| Back Good | Count of I/Os for which a success message is returned. |
| Back Bad | Count of I/Os for which a failure message is returned. |
| Back Retry | Count of I/Os that are being retried. |
| Not Back | Count of I/Os for which no message is returned. |
| Start(diff) | Difference between the count of started I/Os and that of historical I/Os. |
| Back Good(diff) | Difference between the count of I/Os for which a success message is returned and that of historical I/Os. |
| Back Bad(diff) | Difference between the count of I/Os for which a failure message is returned and that of historical I/Os. |
| Back Retry(diff) | Difference between the count of I/Os that are being retried and that of historical I/Os. |
| Not Back(diff) | Difference between the count of I/Os for which no message is returned and that of historical I/Os. |
