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NUTANIX > Configuration > Flashcards

Configuration Flashcards

1
Q

What needs to be done to use Pro & Ultimate licenses?

A

Generate, download and install a license file.

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2
Q

What should be done regarding licensing before destroying a cluster?

A

Reclaim licenses - contact support

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3
Q

What happens if there is a mixture of licenses in a cluster?

A

The lower license level is used. Unlicensed features will generate a warning if used.

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4
Q

How do you begin the process of licensing the cluster

A

From the gear icon in Prism, choose “Licensing” then click “Manage Licenses”

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5
Q

What are the 4 steps to license a cluster online (Internet connected)

A
  1. Generate a cluster summary file
  2. Upload the cluster summary file to the support portal.
  3. Download the license file from the support portal
  4. Upload the license file to the cluster.
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6
Q

What are the X steps to license a cluster offline

A
  1. Click “Follow the manual licensing process”
  2. Copy or print the information presented
  3. Go to the licensing section of the support site
  4. Choose “No cluster summary file” when licensing a new cluster
  5. Enter the information required
  6. Download the license file and transfer to USB stick
  7. Upload the license file to the cluster
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7
Q

In what 2 other scenarios do you need to install a new license file?

A
  1. After adding a node to the cluster

2. To upgrade the license (Pro or Ultimate)

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8
Q

In what 3 scenarios should you reclaim licenses?

A
  1. Destroying a cluster
  2. Removing nodes from a cluster
  3. Downgrading licenses
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9
Q

What 4 features secure the Nutanix cluster?

A
  1. User authentication
  2. SSL client authentication / certificates for Web console
  3. Key-based SSH access
  4. Data at rest encryption (self encrypting drives)
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10
Q

What are the two types of authentication?

A

Local

Directory Service

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11
Q

What 3 fields are required for basic LDAP setup?

A

Name (For display only)
Domain
URL (ldap://)

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12
Q

What 2 types of SSL certificates can be applied to replace the default certificate?

A
  1. A new self-signed certificate

2. A custom CA signed certificate

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13
Q

What two steps remove SSH access to the cluster?

A
  1. Uncheck remote login with Password

2. Remove all keys

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14
Q

What does Pulse do? How often?

A

Sends automated cluster info messages to Nutanix support. Every 24 hours

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15
Q

What is contained in the Pulse messages?

A

Cluster configuration and health information.

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16
Q

What cluster service sends Pulse messages? Via what ports?

A

Zeus. 80 or 8443

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17
Q

How else can the cluster communicate with support and vice versa?

A

Email alerts and support services access

18
Q

What are the 3 options for remote support? What is the default?

A

Enable
Enable for X hours
Disable (default)

19
Q

What hosts and ports are required for Nutanix Remote Support?

A

nsc01.nutanix.net, nsc02.nutanix.net

2525, 80/8443

20
Q

What if the Nutanix cannot access support directly?

A

Configure a proxy: name, address, port, un, pw

21
Q

What are the 4 verbosity levels of the Pulse messages?

A

All, Basic, Nothing, Basic Core dump

22
Q

Which pulse verbosity level adds Hypervisor information?

A

All

23
Q

What 3 steps should be done prior to changing CVM IP addresses, if required?

A

Remove DNS servers and add new ones
Remove NTP servers and add new ones
Check that all nodes are members of the metadata store

24
Q

What is the command to remove/add a DNS server from nCLI?

A

cluster remove-from-name-servers servers=””

cluster add-to-name-servers servers=””

25
Q

What is the command to remove & add NTP servers from nCLI?

A

cluster remove-from-ntp-servers servers=””

cluster add-to-ntp-servers servers=””

26
Q

What command in the shell checks metadata status for all nodes?

A

nCLI host ls | grep “Metadata store status”

27
Q

What metadata status would prevent proceeding with a CVM IP address change?

A

Node marked to be removed from metadata store

28
Q

What 2 commands prepare the cluster for CVM reconfiguration?

A

cluster stop

cluster reconfig

29
Q

What if you need to reassign IP addresses among cluster member nodes?

A

Perform the process twice. Use temporary addresses and then the final reconfigured addresses.

30
Q

After reconfiguring the cluster, how do you start it again?

A

Connect to one of the new IPs and enter “cluster start” from nCLI

31
Q

What are the 4 steps to shut down a node in using vSphere Client?

A
  1. Enter Maintenance Mode
  2. Shutdown CVM
  3. Uncheck “Move VMs to other hosts”
  4. Shutdown the Host
32
Q

What are the 6 steps to shut down a node in ESX using command line?

A
  1. Login to the node being shutdown
  2. From shell: cvm_shutdown -P now
  3. Login to another CVM
  4. From shell: ~/serviceability/bin/esx-enter-maintenance-mode -s
    5: From shell: ~/serviceability/bin/esx-shutdown -s
  5. Ping the hypervisor IP and confirm down
33
Q

What are the 4 steps to start a node using vSphere Client?

A
  1. Power on host
  2. Exit Maintenance Mode
  3. Power On CVM
  4. Login to CVM shell
  5. From shell: ncli cluster status | grep -A 15 cvm_ip_addr
  6. Rescan for datastores
  7. From shell: cluster status
34
Q

What are the 3 major steps to patching an ESXi host?

A
  1. Shut down the node
  2. Patch the node
  3. Start the node
35
Q

What 3 cluster expansion options are valid?

A
  1. Adding a new node
  2. Adding a new block with one or more nodes
  3. Adding all nodes from an existing cluster to another cluster - all data is lost on nodes being added.
36
Q

What 2 parameters on a new node being added to an existing block should be edited?

A
  1. rackable_unit_serial

2. node_position

37
Q

In which file are the identifying parameters for the block and node position stored?

A

On the CVM in /etc/nutanix/factory_config.json

38
Q

What two software requirements must be met before adding a node into the cluster?

A
  1. Hypervisor must be the same type

2. NOS must be the same version

39
Q

What is the command to upgrade NOS on a new node?

A

/home/nutanix/cluster/bin/cluster -u upgrade_node

40
Q

What command should be run after changing factory_config.json

A

genesis restart

NUTANIX (5 decks)

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