Removing a Tier
Describes how to remove a tier that is not associated with a tier, using the Control System, the CLI and the REST API.
About this task
For a primer on Data Tiering, see Data Tiering.
You can remove a tier that is not associated with a volume, using the Control System, the CLI, and REST API. In the Control System, a cold tier is referred to as remote target and you can only remove remote targets (or cold tiers) using the Control System. Use the CLI or REST API to remove cold and warm tiers.
Removing a Remote Target Using the Control System
Procedure
- Log in to the Control System and click to display the list of remote targets.
-
Select the checkbox associated with the tier to delete.
Selecting the checkbox associated with a tier makes the Remove Target button available.
- Click Remote Target to display the Remove Remote Target confirmation dialog.
- Verify the list of remote targets to remove and click Remove.
Removing a Tier Using the CLI and REST API
About this task
Run the following command to remove a tier:
/opt/mapr/bin/maprcli tier remove -name <tier-name>
You cannot remove a tier associated with a volume. If you run the
command to remove a tier that is associated with a volume, the command
returns an error (shown in bold) similar to the following:
{
"timestamp":1516771078126,
"timeofday":"2018-01-23 09:17:58.126 GMT-0800",
"status":"ERROR",
"errors":[{
"id":10003,
"desc":"Cannot remove tier, as some volumes are still using it."
}]
}
Send a request of type POST to remove a tier. For example:
curl -X POST 'https://abc.sj.us:8443/rest/tier/remove?name=ksTestTier' --user <username>:<passowrd>
You
cannot remove a tier associated with a volume. If you send a request to
remove a tier that is associated with a volume, an error (shown in bold)
similar to the following is returned:
# curl -X POST 'https://server.sj.us:8443/rest/tier/remove?name=ksTestTier' --user <username>:<password>
{"timestamp":1524675381333,"timeofday":"2018-04-25 09:56:21.333 GMT-0700 AM","status":"ERROR","errors":[{"id":10003,"desc":"Can not remove tier, as some volumes are still using it."}]}
For more information, see tier remove
.