label modify

Modifies a label. See Using Storage Labels for more information on labels.

When modifying a label for a Storage Pool, the label and its associated values apply to all the disks in the Storage Pool.

Syntax

CLI

maprcli label modify
    -label <label to be modified>
    [ -maxactiveioperdisk max active io per disk  ]
    [ -isssd is solid state drive ]
    [ -istrimenabled is trim enabled ]

REST

Request Type	POST
Request URL	`http[s]://<host>:<port>/rest/label/modify?<parameters>`

Parameters

label

Possible Values: Any label

Description: The label to use for the storage pool. See Using Storage Labels for more information on labels.

The label should contain only the following characters:

A-Z a-z 0-9 _ - .

maxactiveioperdisk

Possible Values: Any integer value between 100 and 50000.

Description: The number of concurrent IO operations per second that can be issued on the disk. Not specifying this value uses the default value specified in the mfs.conf file.

isssd

Possible Values: true or false

Description: Set to true to indicate that the disk is an SSD.

istrimenabled

Possible Values: true or false

Description: Set to true to indicate that the SSD disk is TRIM enabled.

TRIM enables the File System to inform a SSD disk which data blocks it can erase because they are no longer in use. The use of TRIM can improve the performance of writing data to SSDs and contribute to longer SSD life. Set this parameter to true only if the SSD vendor recommends it.

Examples

Modify a label:

CLI

maprcli label modify -label WDCheetah -maxactiveioperdisk 5000 -isssd true -istrimenabled true

REST

https://abc.sj.us:8443/rest/labels/modify?label=WDCheetah&maxactiveioperdisk=5000&-isssd=true&istrimenabled=true