Remove duplicate data from NetApp FAS filer

Duplicate data deletion (De-duplication, DDD) is one of the advanced features of networked storage devices, which can effectively reduce the storage space occupied by duplicate data and increase the space utilization of storage devices.

The data de-duplication feature for NetApp filer is called a-sis. When applying the command line in the following example, replace the/vol/vol1 with your own volume name.

"Applied Articles"

Add license

>license Add a-sis

>license Add Nearstore

Open

On the volume that need to remove duplicate data, turn on the duplicate data deletion function

> Sis On/vol/vol1

If the volume space is insufficient, the following error occurs

> Sis On/vol/vol1

Creation of metafile failed:/vol/vol1

Start scanning and duplicate data deletion immediately

> Sis Start–s/vol/vol1

Check for duplicate data deletion during scan and run

> Sis Status/vol/vol1

You can repeatedly press the UP ARROW to repeat this command to view the real-time situation.

Example:

nas01> SIS Status/vol/vol1

/vol/vol1 Enabled Active GB scanned

nas01> SIS Status/vol/vol1

Path State Status Progress

/vol/vol1 Enabled Active GB scanned

nas01> SIS Status/vol/vol1

Path State Status Progress

/vol/vol1 Enabled Active MB (0%) Done

nas01> SIS Status/vol/vol1

Path State Status Progress

/vol/vol1 Enabled Active 5225 MB (12%) Done

When SIS runs over, check volume footprint changes by DF

> Df-s/vol/vol1

Configure schedule for duplicate data deletion

View the current run time

> Sis Config/vol/vol1

Path Schedule

/vol/vol1 sun-sat@0

The default is 7 days a week, 0 points per day.

The following command changes the run time to Monday to Friday, and executes 23:00 daily

> sis config-s mon-fri@23/vol/vol1