cache show mirror
Example
View information about the mirror cache.
admin:/diagnose>cache show mirror Volume mirror write wait num : 0 Stripe mirror write wait num : 0 Volume mirror read wait num : 0 Stripe mirror read wait num : 0 Other mirror wait num : 0 Retry mirror num : 0 Force mirror chunk num : 0 Force mirror page num(volume): 0 Force mirror page num(stripe): 0 Force mirror io num(volume): 0 Force mirror io num(stripe): 0 Volume force mirror wait num : 0 Stripe force mirror wait num : 0 Force mirror task num : 4 Force mirror active task num : 0 Mirror req page num : 0 Mirror req remote page num : 0 Mirror req destage remote page num : 0 Mirror req stripe remote page num : 0 Task [0] is (inactive) in Thread [0]. Task [1] is (inactive) in Thread [1]. Task [2] is (inactive) in Thread [2]. Task [3] is (inactive) in Thread [3]. vnodeid vnodeValid mirrorid sendCnt recvCnt 0 0 1 0 0 1 0 1 0 0 2 0 65535 0 0 3 0 65535 0 0 4 0 65535 0 0 5 0 65535 0 0 6 0 65535 0 0 7 0 65535 0 0 8 0 65535 0 0 9 0 65535 0 0 10 0 65535 0 0 11 0 65535 0 0 12 0 65535 0 0 13 0 65535 0 0 14 0 65535 0 0 15 0 65535 0 0 mirror del count : 0 mirror del count : 0 Local version Idx:2240020738
System Response
The following table describes the parameter meanings.
Parameter |
Meaning |
|---|---|
| Volume mirror write wait num | Number of waiting write REQs in layer 1 cache mirror. |
| Stripe mirror write wait num | Number of waiting write REQs in layer 2 cache mirror. |
| Volume mirror read wait num | Number of waiting read REQs in layer 1 cache mirror. |
| Stripe mirror read wait num | Number of waiting read REQs in layer 2 cache mirror. |
| Other mirror wait num | Number of waiting requests in other mirrors. |
| Retry mirror num | Number of retried requests in the cache mirror. |
| Force mirror chunk num | Number of chunks in the cache forcible mirror. |
| Force mirror page num(volume) | Number of pages in layer 1 cache forcible mirror. |
| Force mirror page num(stripe) | Number of pages in layer 2 cache forcible mirror. |
| Force mirror io num(volume) | Number of I/Os in layer 1 cache forcible mirror. |
| Force mirror io num(stripe) | Number of I/Os in layer 2 cache forcible mirror. |
| Volume force mirror wait num | Number of waiting REQs in layer 1 cache forcible mirror. |
| Stripe force mirror wait num | Number of waiting REQs in layer 2 cache forcible mirror. |
| Force mirror task num | Number of cache forcible mirror tasks. |
| Force mirror active task num | Number of cache forcible mirror activation tasks. |
| Mirror req page num | Number of REQ pages in the cache mirror. |
| Mirror req remote page num | Number of remote REQ pages in the cache mirror. |
| Mirror req destage remote page num | Number of REQs for remote pages written to the cache. |
| Mirror req stripe remote page num | Number of REQs for remote pages in the layer 2 cache mirror. |
| vnodeid | ID of the virtual node. |
| vnodeValid | Validity status of the virtual node. |
| mirrorid | Mirror node ID. |
| sendCnt | Number of sent REQs. |
| recvCnt | Number of received REQs. |
| mirror del count | Number of deleted REQs in the mirror. |
| Local version Idx | Version of the local controller. |
