Adding a plex to an aggregate or traditional volume, where the user selects the disks with assistance from Data ONTAP

You can preview what disks Data ONTAP would select if it were to mirror the aggregate or traditional volume.

Steps

1. To mirror an existing aggregate or traditional volume by previewing disks Data ONTAP would use in the form of a sample command, enter the following command:{ aggr | vol } mirror { aggrname | volname } -n

   aggrname is the name of the aggregate you are mirroring.

   volname is the name of the traditional volume you are mirroring (without the /vol/prefix ).

   -n specifies to Data ONTAP not to create the mirrored aggregate or traditional volume, but show the disks that it would use if it did create the mirrored aggregate or traditional volume.

   Data ONTAP returns an aggr mirror command or a vol mirror command that specifies the necessary number and type of disks you can use to mirror the aggregate or traditional volume.

2. If...	Then...
   You want to use the disks specified by Data ONTAP.	Enter the aggr mirror command or vol mirror command specified.
   You want to substitute other disks for one or more disks specified by Data ONTAP.	Enter the aggr mirror command or vol mirror command and substitute other disks for one or more of the disks specified.

   Example

   Use the following command to preview the disks that Data ONTAP would use when mirroring the aggrA aggregate.aggr mirror aggrA -n

   Data ONTAP returns the following command:aggr mirror aggrA -d 8.1 8.2 8.3

   Example

   Use the following command to preview the disks that Data ONTAP would use when mirroring the volA traditional volume.vol mirror volA -n

   Data ONTAP returns the following command:vol mirror volA -d 8.1 8.2 8.3