Retrieving Historical Information for vCenter Managed Systems

You can retrieve information about events that occurred in vCenter before the managed system was added to vCommander.

What Is?

Retrieving historical information can take a considerable amount of time to complete, especially on large managed systems (for example, a managed system that has thousands of VMs) because a large amount of data processing is occurring. In a typical environment of approximately 1,000 VMs, this task can take up to two hours to complete. However, the performance of vCommander and the managed system performance isn't affected, because this activity runs in the background.

Historical information is based on two dates:

  • The first date (From) is the date furthest in the past for which historical event information is available for the managed system. You can enter any date into this field, provided that this date is before the managed system was added to vCommander and that it's before any date for which you have already retrieved historical event information.
  • The second date (To) is generated by the system. This date indicates either the date the managed system was added to vCommander or the earliest date for which you last retrieved historical events for this managed system.

To ensure that reports contain information for all VMs, we recommend that the period for which you retrieve historical events is long enough for vCommander to retrieve events for all VMs.

Notes:

  • If you retrieve historical events, then purge your database and try to retrieve the historical events again, the task can't be completed. vCommander doesn't support retrieving historical events that have been purged.
  • When you retrieve historical events, the information about VM lineage and creation isn't updated in real time. To see accurate information for historical events, log out and log back into vCommander.

Information about historical events can appear in the following reports:

Historical Events Retrieved

For VMs: For Hosts: For Resource Pools:

VM Power On

Host Added

Resource Pool Created

VM Power Off

Host Connected

Resource Pool Destroyed

VM Cloned

Host Removed

Resource Pool Moved

VM Connected

Host Disconnected

Resource Pool Reconfigured

VM Created

Resource Pool Violated

VM Deployed

VM Disconnected

VM Discovered

VM Migrated

VM Relocated

VM Registered

VM Removed

VM Suspended

For VM Custom Fields:

Custom Field Value Changed

Custom Field Definition Removed

Retrieving historical events for vCenter

Access through:

Views menu > Operational or Deployed

Available to:

Administrator Access Rights

Caution: Make sure that the clocks for the servers on which you're hosting a managed system and vCommander are synchronized so that all information for historical events is captured.

  1. Select a vCenter managed system on the Operational or Deployed tree.
  2. Right-click and choose Retrieve Historical Events.
  3. In the Retrieve Historical Events dialog, in the From field, enter any date (using calendar) before the To date.

    The To date is either the date that the managed system was added to vCommander or the earliest date for which you have already requested historical event information.

    For example, if you previously retrieved historical events for a date that went back three months before the managed system was added to vCommander, then the To date field displays that date.

  4. Click OK to confirm.