Template:SetupStep NTP

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Network Time Protocol (NTP) Configuration

NTP is a system to make sure that the clock on computers is accurate. It is particularly important in Ceph cluster deployments that the clock be accurate. When the clocks on two or more appliances are not synchronized it is called clock skew. Clock skew can happen for a few different reasons, most commonly:

  1. NTP server setting is not configured on one or more appliances (use the Modify Storage System dialog to configure)
  2. NTP server is not accessible due to firewall configure issues
  3. No secondary NTP server is specified so the outage of the primary is leading to skew issues
  4. NTP servers are offline
  5. Network configuration problem is blocking access to the NTP servers

Ensure NTP servers are configured for each Appliance by right clicking on the Appliance under the Storage System drawer and select Modify Storage System... and examine that you have valid NTP servers configured.

  • Note that QuantaStor retains the Ubuntu default NTP servers, but this may need to be adjusted based on accessibility restrictions of the Ceph cluster's network.
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