qos settings cache show
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Display list of cache policies
Availability: This command is available to cluster administrators at the admin privilege level.
Description
The ` qos settings cache show` shows the current caching-policies, class to which they belong, the number of workloads associated with each of the policies, and whether or not they are set to default. The following external-cache policies are available:
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none - Does not cache any user data or metadata blocks.
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auto - Read caches all metadata and randomly read user data blocks, and write caches all randomly overwritten user data blocks.
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all - Read caches all data blocks read and written. It does not do any write caching.
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all-random_write - Read caches all data blocks read and written. It also write caches randomly overwritten user data blocks.
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all_read - Read caches all metadata, randomly read, and sequentially read user data blocks.
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all_read-random_write - Read caches all metadata, randomly read, and sequentially read user data blocks. It also write caches randomly overwritten user data blocks.
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all_read_random_write - Read caches all metadata, randomly read, sequentially read and randomly written user data.
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all_read_random_write-random_write - Read caches all metadata, randomly read, sequentially read, and randomly written user data blocks. It also write caches randomly overwritten user data blocks.
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meta - Read caches only metadata blocks.
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meta-random_write - Read caches all metadata and write caches randomly overwritten user data blocks.
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noread-random_write - Write caches all randomly overwritten user data blocks. It does not do any read caching.
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random_read - Read caches all metadata and randomly read user data blocks.
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random_read_write - Read caches all metadata, randomly read and randomly written user data blocks.
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random_read_write-random_write - Read caches all metadata, randomly read, and randomly written user data blocks. It also write caches randomly overwritten user data blocks.
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Note that in a caching-policy name, a hyphen (-) separates read and write caching policies. |
Parameters
- {
[-fields <fieldname>,…] -
The input to this parameter is one of the following: {cache-setting|class|default|num-workloads}. If you use this parameter, the command displays information related to the specified input field.
- |
[-instance ]} -
If you use this parameter, the command displays information about the caching-policies in a list format.
[-cache-setting <text>]- Cache Policy Name-
The input to this parameter is any one of the above listed caching-policies. If you use this parameter, the command displays information corresponding to the specified caching-policy.
[-class <QoS Configuration Class>]- Cache Policy Class-
The input to this parameter is one of the following: {undefined|preset|user-defined|system-defined|autovolume}. If you use this parameter, the command displays information corresponding to the specified policy-group class.
[-default {true|false}]- Is Default?-
The input to this parameter is true and false. If you use this parameter, the command displays information corresponding to entries that have the specified default value.
[-num-workloads <integer>]- Number Of Workloads With This Policy-
The input to this parameter is an integer. If you use this parameter, the command displays information about policy-groups matching the specified number of workloads.
Examples
cluster1::> qos settings cache show
Policy Name Class Num Workloads Default
------------ ------------ ------------- -------
all preset 0 false
all-random_write
preset 0 false
all_read preset 0 false
all_read-random_write
preset 0 false
all_read_random_write
preset 0 false
all_read_random_write-random_write
preset 0 false
auto preset 2 false
meta preset 0 false
meta-random_write
preset 0 false
none preset 0 false
noread-random_write
preset 0 false
random_read preset 25 false
random_read_write
preset 0 false
random_read_write-random_write
preset 28 true
14 entries were displayed.
Shows QoS settings for the caching policies.