In this section, we will learn how to manage the NetApp cluster. We will change the serial, disable and remove snapshots and others:

Now, in order to make some use of our Virtualised storage, we need to add some disks.

Before that however, we need to unlock the diag user. Diag user is a special type of user, used for administrative purposes and the most important thing is that it allows us to enter into the system shell:

Now that we are in the system shell we are ready to create the disks as follows:

• Change the Path
• Create the disks

To add SSD disks, use the same command, just instead of type 23, we will add disks with type: 35

After that, we can safetly reboot the machine. Once the machines boots, we have to fix a common problem with the simulator. The simulator often crashes because of the insufficient space in the root aggregate. So, we have to assign all disks this node and remove & disable the snapshots

In this section we will review general disk management for both: simulator and real environment:

After that we can reboot the server:

Once rebooted, we can assign disk to the root aggregate and increase the space in the volume:

Firstly, we have to add the disk to the volume:

Once we have that we can increase the storage of the volume. Firstly, I will give him bigger number (1G) so I will see with how much I can increase it (in my case 888MB)

On NetApp, we have several privilege levels:

• Admin - Most commands and parameters are available at this level. They are used for common or routine tasks.
• Advanced - Commands and parameters at this level are used infrequently, require advanced knowledge, and can cause problems if used inappropriately. You use advanced commands or parameters only with the advice of support personnel.
• Diagnostic (locked by default) - Diagnostic commands and parameters are potentially disruptive. They are used only by support personnel to diagnose and fix problems.

Let's see how to enter and use each of them:

The admin privilege is default privilege level which you have when you enter with the management IP and username & password which you specify when you create the cluster.

login as: admin
Keyboard-interactive authentication prompts from server:
| Password:
End of keyboard-interactive prompts from server

This is your first recorded login.
Unsuccessful login attempts since last login: 1
cluster1::>

As explained above, most of the commands are available in that mode.

In advanced privileged level we have additional commands and options. Please be careful, as advanced should be used only with the instructions of NetApp support:

To elevate your privileges to Advanced level, use the following syntax:

cluster1::> set -privilege advanced

Warning: These advanced commands are potentially dangerous; use them only when
         directed to do so by NetApp personnel.
Do you want to continue? {y|n}: y

cluster1::*>

We can check all the commands available in Advanced level:

cluster1::*> ?
  application>                *Display and manage applications
  autobalance>                *The autobalance directory
  cluster>                    Manage clusters
  event>                      Manage system events
  exit                        Quit the CLI session
  history                     Show the history of commands for this CLI session
  job>                        Manage jobs and job schedules
  lun>                        Manage LUNs
  man                         Display the on-line manual pages
  metrocluster>               Manage MetroCluster
  network>                    Manage physical and virtual network connections
  protection-type>            *Manage Protection Types and RPOs
  qos>                        QoS settings
  redo                        Execute a previous command
  rows                        Show/Set the rows for this CLI session
  run                         Run interactive or non-interactive commands in the nodeshell
  security>                   The security directory
  set                         Display/Set CLI session settings
  snaplock>                   Manages SnapLock attributes in the system
  snapmirror>                 Manage SnapMirror
  statistics>                 Display operational statistics
  statistics-v1>              The statistics-v1 directory
  storage>                    Manage physical storage, including disks, aggregates, and failover
  storage-service>            *Manage Storage Services
  system>                     The system directory
  top                         Go to the top-level directory
  up                          Go up one directory
  volume>                     Manage virtual storage, including volumes, snapshots, and mirrors
  vserver>                    Manage Vservers

The commands, ending with “*” are available ONLY in advanced privileged level.

Diagnostic is to be used by NetApp personal only or by their supervsion and instructions. It can cause permanent failure if used wrongly.

To enter into a diagnostic privileged level, use the following command (again only under Netapp personal supervision and guidance)

cluster1::*> set -privilege diagnostic

Warning: These diagnostic commands are for use by NetApp personnel only.
Do you want to continue? {y|n}: y

cluster1::*>

Legacy mode is the old ONTAP7- level of syntax. Unlike the other privileges, the legacy mode operate on the node, rather than the entire cluster level.

To enter into legacy mode, use the following command:

cluster1::*> system node run cluster1-01
Type 'exit' or 'Ctrl-D' to return to the CLI
cluster1-01>

Where cluster1-01 is the cluster node which you want to manage.

System level is very low level management and it is usually done via the Netapp personal instructions. First we have to set the diagnostic level privilege, as before and then we can enable also system level.

cluster1::> set -privilege diagnostic

Warning: These diagnostic commands are for use by NetApp personnel only.
Do you want to continue? {y|n}: y

cluster1::*> systemshell local
  (system node systemshell)
[email protected]'s password:

Warning:  The system shell provides access to low-level
diagnostic tools that can cause irreparable damage to
the system if not used properly.  Use this environment
only when directed to do so by support personnel.

cluster1-01%