JetStream Software

Pre-Installation Guidelines

Before installing the JetStream DR software, review the following guidelines and consider and the vSphere environment to be protected. This will ensure optimal configuration and provide the best possible results.

Protected Site

These pre-installation guidelines assume the protected site includes a single vSphere-based service cluster providing administrative services (vCenter, DNS, Active Directory, etc.) to one or more vSphere compute clusters, in which line-of-businessapplications run. The two types of clusters contain the following components:

  • Service Cluster
    • vCenter Server Appliance (VCSA)
    • Jetstream DR Management Server Appliance (MSA)
  • Compute Cluster(s)
    • vSphere host servers
    • Virtual machines
    • Jetstream DR Virtual Appliances (DRVA) (at minimum one; if multiple, up to one per vSphere host)
    • A low-latency, shared flash storage device. This can be controlled by JetStream software or provided by third party. It is used as repository for the replication log store.

The protected site should adhere to the following guidelines:

ItemDetails
VMware vCenter ServerSupported Version: Version 6.7
 HTTPS Port: If using a firewall, HTTPS port 443 must be open.
 Connectivity: The JetStream DR Management Server Appliance FQDN must be reachable from vCenter Server, otherwise the plugin installation will fail.
 Time: The vCenter Server and JetStream DR MSA clocks must be synchronized.
Distributed Resource Scheduler (DRS)DRS is strongly recommended on the compute cluster for resource balancing.
ClustervSphere Hosts: VMs to be protected by JetStream DR must be part of a cluster.
vSphere HostSupported Version: 6.7 Update 1 (U1 build number#10302608) or later. All hosts in the cluster must run the same version of ESXi.
 Time: The vSphere hosts and JetStream DR MSA clocks must be synchronized.
 Connectivity: vCenter Server FQDN must be reachable from the host, otherwise the host configuration will fail.
 CIM Service: The CIM server must be enabled on the vSphere hosts of the protected VMs. This is the default setting.
JetStream DR Management Server Appliance (MSA)An MSA will be deployed during configuration prior to DR protection. The MSA should be configured according to the following specifications for: CPU, Memory, Disk Space, Network and DNS.
CPU: 64 bit, 4 vCPUs
 Memory: 4GB
 Disk Space: 60GB
 Network: Static or dynamically assigned (DHCP) IP addresses can be used for the MSA interface. The FQDN should be registered with DNS.
 DNS: DNS name resolution for vSphere hosts and vCenter Server.
JetStream DR Virtual Appliance (DRVA)The DRVA is an .iso image that is automatically deployed by the JetStream DR management server during installation. Its minimum system requirements are:
CPU: 4 Cores
 Memory: 8GB
 Network: Static or dynamically assigned (DHCP) IP addresses can be used for the DRVA interface.
Replication Log StoreFor optimal performance, the protected site should expose a low-latency, flash storage device that is shared by the hosts in the cluster. This device can be controlled by the JetStream DR software or provided by a third party. It is used as a repository for the replication log. DR Virtual Appliances (DRVA) and ESXi host(s) must have direct access to this storage over iSCSI. 
PortsWhen JetStream DR software is installed, a range of ports will automatically be opened on the source ESXi hosts. For most users, no additional action is necessary. In cases where the on-premises/source setup has special firewall rules blocking these ports, additional administrative steps will be needed to manually open these ports. 
Port Range32873-32878

Object Storage

JetStream DR works seamlessly with S3-compatible and Azure Blob object storage. There are no special requirements or configurations necessary to be able to use JetStream DR other than a standard user account at the object storage site with an adequate level of service to house all the data to be protected.

JetStream DR works with the following object storage services:

  • Microsoft Azure Blob Storage
  • Cloudian Object Storage
  • Amazon S3 Object Storage
  • MinIO Object Storage

Recovery Site

It is not mandatory to establish the service cluster at the recovery site prior to protection. The service cluster at the recovery site can be established during initial configuration or after an incident occurs, as part of the recovery process. Compute clusters are added to the recovery site on demand, as needed. The system requirements of the recovery site are generally the same as for the protected site (described above).

Network

A network with the following characteristics must be established between the protected site and the recovery site:

ItemDetails
JetStream DR Management Server Appliance (MSA)A management network is required for the MSA. This network is used for access to the JetStream DR RESTful APIs and making other data path calls. If a private network is available for connecting to the object store, this private network should be added to the MSA VM as a separate network. If no private network is available, make sure the management network can be used to connect to the object store.
Management Network:Required.
External Network:
(for object store access)
A dedicated external network can be used; otherwise, data traffic will be sent over the management network.
JetStream DR Virtual Appliance (DRVA)If the only network used is the management network, make sure it has access to both IO Filter and the object store. If multiple networks exist within the cluster, all must be attached to the DRVA VMs.
Recovery from Object Cloud Virtual Appliance (RocVA)If the only network used is the management network, make sure it has access to both the ESXi host(s) and the object store. If multiple networks exist within the cluster, all must be attached to the RocVA VM. The RocVA is a temporary VM that is automatically created when needed for VM recovery, then removed when it is no longer needed.
Object Store / Blob StorageThe object store/Blob Storage should be accessible to both the protected site and the recovery site.
Replication Log StoreDR Virtual Appliances (DRVAs) and ESXi host(s) must have direct access to this storage.

[Applies to all product versions.]

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