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volume efficiency stat

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Show volume efficiency statistics

Availability: This command is available to cluster and Vserver administrators at the admin privilege level.

Description

The volume efficiency stat command displays efficiency statistics. The output depends on the parameters specified with the command. If no parameters are specified, the command displays the following efficiency statistics fields for all the volumes:

  • Vserver: The Vserver that the volume belongs to.

  • Volume Name: Name of the volume.

  • Inline Compression Attempts: Number of inline compression attempts done.

  • Inline Incompressible CGs: Number of compression groups that cannot be compressed by inline compression.

To display detailed information, run the command with -instance parameter.

Parameters

{ [-fields <fieldname>,…​]

This specifies the fields that need to be displayed. The Vserver and volume name are the default fields.

| [-instance ] }

If you specify the -instance parameter, the command displays detailed information about all fields.

[-vserver <vserver name>] - Vserver Name

Displays statistics only for those volume(s) that match the specified Vserver.

{ [-volume <volume name>] - Volume Name

Displays statistics only for those volume(s) that match the specified volume name.

| [-path </vol/volume>] - Volume Path }

Displays statistics only for those volume(s) that match the specified volume path.

[-b <true>] - Display In Blocks

Displays usage size in 4k block counts.

[-num-compressed-inline <integer>] - Inline Compression Attempts

Displays statistics only for those volume(s) that match the specified number of Compression Groups attempted inline.

[-num-icg-inline <integer>] - Incompressible CGs Found By Inline Compression

Displays statistics only for those volume(s) that match the specified number of incompressible Compression Groups encountered during Inline Compression.

[-inactive-blocks-compressed <integer>] - Number of Inactive Blocks Compressed

Displays statistics only for those volumes that match the specified number of cold blocks on which compression was done.

Examples

The following example displays default efficiency statistics for all the volumes.

cluster1::> volume efficiency stat
Vserver:                       vs1
Volume:                        vol2
Inline Compression Attempts:   0
Inline Incompressible CGs:     0

Vserver:                       vs1
Volume:                        vol3
Inline Compression Attempts:   0
Inline Incompressible CGs:     0