Skip to main content
NetApp Response to Russia-Ukraine Cyber Threat
In response to the recent rise in cyber threat due to the Russian-Ukraine crisis, NetApp is actively monitoring the global security intelligence and updating our cybersecurity measures. We follow U.S. Federal Government guidance and remain on high alert. Customers are encouraged to monitor the Cybersecurity and Infrastructure Security (CISA) website for new information as it develops and remain on high alert.
NetApp Knowledge Base

Adding disks to an aggregate does not show correct disk count

Last Updated:

Applies to

  • MetroCluster
  • ONTAP 9.5
  • Adding disks to an existing aggregate


When attempting to add disks to an existing aggregate, the preview displayed is not showing correct disk count for the "Second plex": 

ClusterA::> storage aggregate add-disks -aggregate aggr1 -disklist 7.70.0,7.70.1,7.70.2,7.70.3,7.70.4,7.70.5 -mirror-disklist 6.20.0,6.20.1,6.20.2,6.20.3,6.20.4,6.20.5  -raidgroup rg0 -simulate true

Disks would be added to aggregate "aggr1" on node "Node1" in the following manner:

First Plex

  RAID Group rg0, 28 disks (block checksum, raid_dp)
                                                      Usable Physical
    Position   Disk                      Type           Size     Size
    ---------- ------------------------- ---------- -------- --------
    data       7.70.0                    SAS          1.63TB   1.64TB
    data       7.70.1                    SAS          1.63TB   1.64TB
    data       7.70.2                    SAS          1.63TB   1.64TB
    data       7.70.3                    SAS          1.63TB   1.64TB
    data       7.70.4                    SAS          1.63TB   1.64TB
    data       7.70.5                    SAS          1.63TB   1.64TB

Second Plex

RAID Group rg0, 6 disks (block checksum, raid_dp) <<<<<<<<<<<<<<<<<<<<<<<<<< Not showing all the disks in the plex
                                                      Usable Physical
    Position   Disk                      Type           Size     Size
    ---------- ------------------------- ---------- -------- --------
    data       6.20.0                    SAS          1.63TB   1.64TB
    data       6.20.1                    SAS          1.63TB   1.64TB
    data       6.20.2                    SAS          1.63TB   1.64TB
    data       6.20.3                    SAS          1.63TB   1.64TB
    data       6.20.4                    SAS          1.63TB   1.64TB
    data       6.20.5                    SAS          1.63TB   1.64TB


Scan to view the article on your device

Registered NetApp customers get unlimited access to our dynamic Knowledge Base.

New authoritative content is published and updated each day by our team of experts.

Current Customer or Partner?

Sign In for unlimited access

New to NetApp?

Learn more about our award-winning Support


  • Was this article helpful?