The Zerto Virtual Manager User Interface : Edit VM Dialog (vCD)
  
Edit VM Dialog (vCD)
Used only in environments with vCD.
■ Storage Policy: The Storage Policy in which the VM configuration files will reside. For considerations, see 1.
■ Journal Storage Policy: The Storage Policy in which the VM Journal files will reside. For considerations, see 2.
1. When selecting Storage Policy, consider the following:
■ Zerto will select a datastore from the selected Storage Policy in which to place these files, unless the datastore is excluded in the Configure Provider vDCs Dialog.
■ Zerto will try to determine a default Storage Policy according to:
■ A Storage Policy with the same name as the protected Storage Policy.
■ The default Orgvdc Storage Policy.
If Zerto did not manage to determine a default Storage Policy, this field appears empty.
■ When you click to edit, a list of Storage Policies appear. These Storage Policies:
■ Were defined in VMware vCloud Director and are configured in the Orgvdc.
■ Have at least one Datastore that was not excluded as a Recovery Volume in the Configure Provider vDCs Dialog.
■ To review site-specific configurations, see Configure Provider vDCs Dialog.
2. When selecting Journal Storage Policy, consider the following:
■ Zerto will select a datastore from the selected Storage Policy in which to place the Journal files, unless the datastore is excluded in the Configure Provider vDCs Dialog.
■ The default Journal Storage Policy is the same as the default VM Storage Policy.
■ If Zerto did not manage to determine a default Journal Storage Policy, this field appears empty.
■ When you click to edit, the option Auto Select appears, and a list of Storage Policies.
■ The list of Storage Policies associated with the Journal:
■ Were defined in VMware vCloud Director and are configured in the Orgvdc.
■ Have at least one Datastore that was not excluded as a Journal in the Configure Provider vDCs Dialog.
■ Auto Select: Selecting this means that the journal can be placed in any datastore visible to the host that Zerto selected for recovery, unless the datastore is excluded in the Configure Provider vDCs Dialog.
 
Setting & Description
Select...
Journal History
The time that all write commands are saved in the journal.
The longer the information is saved in the journal, the more space is required for each journal in the VPG.
■ Number of hours from 1 to 24
■ Number of days from 2 to 30
Default Journal Storage (Hyper-V), or Default Journal Datastore (vSphere)
The storage/datastore used for the journal data for each virtual machine in the VPG.
Note: This field is not relevant when replicating to a vCD recovery site.
■ Select the storage/datastore accessible to the host.
When you select a specific journal storage/datastore, the journals for each virtual machine in the VPG are stored in this storage/datastore, regardless of where the recovery storage/datastore is for each virtual machine. All protected virtual machines are recovered to the hosts that can access the specified journal storage/datastore.
Journal Size Hard Limit
The maximum size that the journal can grow, either as a percentage or a fixed amount.
The journal is always thin-provisioned.
Note: The Journal Size Hard Limit applies independently both to the Journal History and also to the Scratch Journal Volume.
For Example: If the Journal Size Hard Limit is configured to a maximum size of 160 GB limit, then during Failover Test, both the Journal History and the Scratch Journal Volume together can take up to 320 GB. Each one with a maximum size of 160 GB limit.
■ Unlimited: The size of the journal is unlimited and it can grow to the size of the recovery storage/datastore.
If Unlimited is selected, Size and Percentage options are not displayed.
■ Size (GB): The maximum journal size in GB.
■ The minimum journal size, set by Zerto Virtual Replication, is 8GB for Hyper-V and vSphere environments, and 10GB for Microsoft Azure environments.
■ Percentage: The percentage of the virtual machine volume size to which the journal can grow.
■ This value can be configured to more than 100% of the protected VM's volume size.
Journal Size Warning Threshold
The size of the journal that triggers a warning that the journal is nearing its hard limit.
■ Unlimited: The size of the journal is unlimited and it can grow to the size of the recovery storage/datastore.
If Unlimited is selected, Size and Percentage options are not displayed.
■ Size* (GB): The size in GB that will generate a warning.
■ Percentage*: The percentage of the virtual machine volume size that will generate a warning.
*The values of Size and Percentage must be less than the configured Journal Size Hard Limit so that the warning will be generated when needed.
In addition to the warning threshold, Zerto Virtual Replication will issue a message when the free space available for the journal is almost full.