Wcache CLI Commands
cache show global
- Function
Queries the global Wcache information.
- Syntax
cache show global
- Parameters
Parameter
Description
Value
N/A
N/A
N/A
cache show confinfo
- Function
Queries the Wcache configuration information.
- Syntax
cache show confinfo
- Parameters
Parameter
Description
Value
N/A
N/A
N/A
cache show cachepool
- Function
Queries the cache pool information.
- Syntax
cache show cachepool all
cache show cachepool <poolid> {concur | hangio | all | <vnodeid>}
- Parameters
Parameter
Description
Value
poolid
Cache pool ID
0
vnodeid
vnode ID
0-127
cache show dsgAlgObj
- Function
Queries whether the destage function is enabled.
- Syntax
cache show dsgAlgObj
- Parameters
Parameter
Description
Value
N/A
N/A
N/A
cache show dsgparam
- Function
Queries the destage information.
- Syntax
cache show dsgparam
cache show dsgparam {batchconcur | concur} <diskId>
- Parameters
Parameter
Description
Value
diskId
Drive ID
0 or 1
cache show io
- Function
Queries all I/Os.
- Syntax
cache show io
- Parameters
Parameter
Description
Value
N/A
N/A
N/A
cache show concur
- Function
Queries the current concurrency.
- Syntax
cache show concur
- Parameters
Parameter
Description
Value
N/A
N/A
N/A
cache show quota
- Function
Queries the global quota usage.
- Syntax
cache show quota global
cache show quota public
cache show quota cachepool {all | <cachePoolId>}
- Parameters
Parameter
Description
Value
cachePoolId
Cache pool ID
0
cache show subdsgobj
- Function
Queries subdsg objects.
- Syntax
cache show subdsgobj <poolId> all
cache show subdsgobj <poolId> <vnodeid> <flowid> <single|eff|all|trace>
cache show subdsgobj <poolId> <vnodeid> <flowid> trace
cache show subdsgobj <poolId> <vnodeid> <flowid> trace <endTraceIndex> <traceCnt>
cache show subdsgobj <poolId> <vnodeid> <flowid> [tag]
- Parameters
Parameter
Description
Value
poolid
Pool ID
0
vnodeid
vnode ID
0-127
flowid
Flow ID
0
endTraceIndex
Trace index location
0-65536
traceCnt
Number of traces
1-1023
cache show dsgobj
- Function
Queries dsg objects.
- Syntax
cache show dsgobj <poolId> info
cache show dsgobj <poolId> chunk
cache show dsgobj <poolId> io
cache show dsgobj <poolId> worker
cache show dsgobj <poolId> batchsimple
- Parameters
Parameter
Description
Value
poolid
Pool ID
0
cache show label
- Function
Queries all labels of the Wcache.
- Syntax
cache show label [diff | uint] {all | groupID}
- Parameters
Parameter
Description
Value
groupID
0: [cache_public]
1: [rcache]
2: [proc]
3: [wcache]
4: [wcache_idx]
5: [wcache_destage]
6: [DSG_INDEX_LABEL]
7: [wal_idx]
8: [rcache_classify]
The value of diff groupID ranges from 0 to 8.
groupID
0: [cache_public_uint]
1: [rcache_uint]
2: [wcache]
3: [dsg_label_uint]
The value of uint groupID ranges from 0 to 3.
cache reset label
- Function
Clears the statistics of all labels.
- Syntax
cache reset label {all | atomic | uint}
- Parameters
Parameter
Description
Value
N/A
N/A
N/A
cache show cephpoolindex
- Function
Displays the index relationship between the pools and internal destage aggregations delivered by Ceph on the current node.
- Syntax
cache show cephpoolindex <poolId>
- Parameters
Parameter
Description
Value
poolId
Pool ID
0
cache show overloadctrl
- Function
Displays the Global Cache QoS status. The command output consists of two parts. In the upper part, a maximum of 15 records are displayed when QoS control is not enabled. In the lower part, a maximum of 385 records are displayed after QoS control is enabled.
- Syntax
cache show overloadctrl <appType>
- Parameters
Parameter
Description
Value
appType
Pool type
0