You can use either the management GUI or the command line interface to display results
from a compression analysis.
About this task
After a volume is analyzed for its compression savings, you can display the results and determine
whether to use compression on the volumes. In the management GUI,
select . From the Actions menu, select
to download the analysis. If you are
used the analyzevdisk or the analyzevdiskbysystem commands to
analyze volumes for the potential compression savings, you can display the results for the completed
volumes with the lsvdiskanalysis command.
Procedure
- In the command-line interface, enter the following command to display an analysis for a
single
volume:
lsvdiskanalysis -vdisk_name | -vdisk_id
where
-vdisk_name or
-vdisk_id is either the name or identifier
for the volume that you want to analyze for compression savings. Here is an example of the output
for this command for a single
volume:
id 6
name vol6
state estimated
started_time 150608135446
analysis_time 150608135456
capacity 1.00GB
thin_size 62.18MB
thin_savings 961.82MB
thin_savings_ratio 93.92
compressed_size 12.23MB
compression_savings 49.95MB
compression_savings_ratio 80.33
total_savings 1011.77MB
total_savings_ratio 98.80
accuracy 4.97
- To display the compression analysis results for all the volumes on the system, enter this
command:
lsvdiskanalysis
Here is an example of
the output for this command for multiple
volumes:
id name state analysis_time capacity thin_size thin_savings thin_savings_ratio compressed_size compression_savings compression_savings_ratio total_savings total_savings_ratio accuracy
0 vol0 idle 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0 0
1 vol1 idle 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0 0
2 vol2 active 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0 0
3 vol3 idle 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0 0
4 vol4 idle 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0 0
5 vol5 idle 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0 0
6 vol6 estimated 150608135456 1.00GB 62.18MB 961.82MB 93.92 12.23MB 49.95MB 80.33 1011.77MB 98.80 4.97
7 vol7 scheduled 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0 0
8 vol8 idle 1.00GB 0.00MB 0.00MB 0 0.00MB 0.00MB 0 0.00MB 0