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显示 BranchCache 统计信息

07/31/2023 贡献者

您可以显示 BranchCache 统计信息，以便确定缓存的执行情况，确定您的配置是否正在向客户端提供缓存内容，以及确定是否删除了哈希文件，以便为最新的哈希数据腾出空间。

关于此任务

。 hashd 统计信息对象包含计数器、这些计数器可提供有关anchCache哈希的统计信息。。 cifs 统计信息对象包含计数器、这些计数器提供有关与anchCache相关的活动的统计信息。您可以在高级权限级别收集和显示有关这些对象的信息。

步骤

将权限级别设置为高级： set -privilege advanced

cluster1::> set -privilege advanced

Warning: These advanced commands are potentially dangerous; use them only when directed to do so by support personnel.
Do you want to continue? {y|n}: y

使用显示与anchCache相关的计数器 statistics catalog counter show 命令：

有关统计信息计数器的详细信息，请参见此命令的手册页。

cluster1::*> statistics catalog counter show -object hashd

Object: hashd
    Counter                     Description
    --------------------------- ----------------------------------------------
    branchcache_hash_created    Number of times a request to generate
                                BranchCache hash for a file succeeded.
    branchcache_hash_files_replaced
                                Number of times a BranchCache hash file was
                                deleted to make room for more recent hash
                                data. This happens if the hash store size is
                                exceeded.
    branchcache_hash_rejected   Number of times a request to generate
                                BranchCache hash data failed.
    branchcache_hash_store_bytes
                                Total number of bytes used to store hash data.
    branchcache_hash_store_size Total space used to store BranchCache hash
                                data for the Vserver.
    instance_name               Instance Name
    instance_uuid               Instance UUID
    node_name                   System node name
    node_uuid                   System node id
9 entries were displayed.

cluster1::*> statistics catalog counter show -object cifs

Object: cifs
    Counter                     Description
    --------------------------- ----------------------------------------------
    active_searches             Number of active searches over SMB and SMB2
    auth_reject_too_many        Authentication refused after too many
                                requests were made in rapid succession
    avg_directory_depth         Average number of directories crossed by SMB
                                and SMB2 path-based commands
    avg_junction_depth          Average number of junctions crossed by SMB
                                and SMB2 path-based commands
    branchcache_hash_fetch_fail Total number of times a request to fetch hash
                                data failed. These are failures when
                                attempting to read existing hash data. It
                                does not include attempts to fetch hash data
                                that has not yet been generated.
    branchcache_hash_fetch_ok   Total number of times a request to fetch hash
                                data succeeded.
    branchcache_hash_sent_bytes Total number of bytes sent to clients
                                requesting hashes.
    branchcache_missing_hash_bytes
                                Total number of bytes of data that had to be
                                read by the client because the hash for that
                                content was not available on the server.
   ....Output truncated....

使用收集与anchCache相关的统计信息 statistics start 和 statistics stop 命令

cluster1::*> statistics start -object cifs -vserver vs1 -sample-id 11
Statistics collection is being started for Sample-id: 11

cluster1::*> statistics stop -sample-id 11
Statistics collection is being stopped for Sample-id: 11

使用显示收集的anchCache统计信息 statistics show 命令：

cluster1::*> statistics show -object cifs -counter  branchcache_hash_sent_bytes -sample-id 11

Object: cifs
Instance: vs1
Start-time: 12/26/2012 19:50:24
End-time: 12/26/2012 19:51:01
Cluster: cluster1

    Counter                                                     Value
    -------------------------------- --------------------------------
    branchcache_hash_sent_bytes                                     0
    branchcache_hash_sent_bytes                                     0
    branchcache_hash_sent_bytes                                     0
    branchcache_hash_sent_bytes                                     0

cluster1::*> statistics show -object cifs -counter  branchcache_missing_hash_bytes -sample-id 11

Object: cifs
Instance: vs1
Start-time: 12/26/2012 19:50:24
End-time: 12/26/2012 19:51:01
Cluster: cluster1

    Counter                                                     Value
    -------------------------------- --------------------------------
    branchcache_missing_hash_bytes                                  0
    branchcache_missing_hash_bytes                                  0
    branchcache_missing_hash_bytes                                  0
    branchcache_missing_hash_bytes                                  0

返回到管理权限级别： set -privilege admin
```
cluster1::*> set -privilege admin
```

显示 BranchCache 统计信息

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