If the root volume of a Storage Virtual Machine (SVM) becomes unavailable, clients cannot mount the root of the namespace. In such cases, you must restore the root volume by promoting another volume to facilitate data access to the clients.
When the SVM root volume becomes unavailable, you can restore the root volume by promoting another volume, which does not have other volumes junctioned to it.
For SVMs with FlexVol volumes, you can promote one of the following volumes as the root volume:
Starting from clustered Data ONTAP 8.2, SVM root volume is created with 1 GB size to prevent any failures when mounting any volume in the SVM root volume due to lack of space or inodes. Therefore, if you are promoting a new FlexVol volume, it should be at least 1 GB in size.
|If you want to promote...||Perform the following tasks...|
|A load-sharing mirror as the root volume of an SVM||Promoting load-sharing mirror copy|
|A data-protection mirror as the root volume of an SVM||Promoting data-protection mirror copy|
|A new FlexVol volume||Promoting new FlexVol volume|