Hello, friend!
Run the "show lun generallun_name=?" command to query information about the specified LUN based onthe LUN name.
Capacity is the total capacity for this LUN. The space showed on the application/OS side. Can be over-provisioned.
Subscribed Capacity is actual used capacity quota or capacity used/write by applications
show lun reduction_info lun_id=number
Reduction Ratio: 2.6:1
Reduction Ratio Capacity reduction ratio.
If you create a LUN with 1T provisioning within and 260G application data write in it. Your reduction ratio is 2.6:1. So Subscribed Capacity is 260G. 260G/2.6=100G. 100G physical capacity used in the storage pool. It means 100G physical space can store 260G application data by deduplication and compression
Capacity 1T LUNsize
Subscribed Capacity 260G application data written from OSside
Reduction Ratio: 2.6:1 reduction ratio is 2.6:1
show lun general
https://support.huawei.com/hedex/hdx.do?lib=EDOC1100136237YEJ0426J&docid=EDOC1100136237&lang=en&v=05&tocLib=EDOC1100136237YEJ0426J&tocV=05&id=lun_show-lun-general&tocURL=resources%2Flun_show-lun-general.html&p=t&fe=1&ui=3&keyword=show+lun+general
show lun reduction_info
https://support.huawei.com/hedex/hdx.do?lib=EDOC1100136237YEJ0426J&docid=EDOC1100136237&lang=en&v=05&tocLib=EDOC1100136237YEJ0426J&tocV=05&id=lun_show-lun-reduction_info&tocURL=resources%2Flun_show-lun-reduction_info.html&p=t&fe=1&ui=3&keyword=show+lun+reduction_info
You should mention available capacity for the storage pool which describes how much physical capacity is available. Subscribed capacity for storage pool describes how much application data is used and how many application data can be written. The alarm will be reported if available capacity for storage pool is below 20%. Please consider expansion DAE or move some data off current storage if available capacity for storage pool is below 10%.
For storage pool
Available capacity: physical capacity for storage
Subscribed capacity: application data can be written and how much application data used.
Hope this helps!
