Important notices for system administrators:

  • Virtual Machines must be located on shared storage. All datastores, on which VMs to be protected are located, must be accessible from all hosts in a cluster.
  • Enabling DRS is strongly recommended for protected and recovery clusters because it is required for DR components HA and to uninstall or upgrade JetStream software.
  • The JetStream DR management console supports single client access only. Otherwise, configuration changes may be reflected incorrectly in the GUI.
  • If linked vCenters are used, then JetDR must be installed and upgraded on all vCenters at the same time. Installed JetDr version must match between such vCenters.
  • Do not make changes to the configuration of any JetStream DR component (i.e., virtual appliances automatically created during Failover, Failback, Restore, and PIT recovery) in a way other than by utilities provided by JetStream, including taking or removing the snapshots. (DRBC-7450)
  • When using the GUI to configure a cluster, installation may fail, and storage policies will not be created on the vCenter server. This is a VMware limitation.
  • Failover and Failback wizards have a VM “Storage Policy” drop-down option during task submission. This is an optional selection and if not specified, the datastore default policy will be used. However, in some environments the default policy could be inappropriate. An appropriate policy must be selected based on the target environment. Specifically, when selecting VSAN RAID FTT, refer to VMware VSAN documentation for policies and ESXi node requirements to make sure the target environment can support those RAID policies (for example, has appropriate number of hosts).
  • VMware has officially stopped supporting vSphere 6.7. However, if vSphere 6.7 is currently being used, it is possible to try JetStream DR software for PoC purposes before switching to vSphere 7.0 for production. JetStream DR can run on vCenter 6.7 U1 (build 10244745) and above with ESXi 6.7 PO3 (build 16713306) and above, with iofilters manually installed on all hosts for PoC. However, JetStream DR cannot be used for production with 6.7 vCenter and ESXi.
  • The number of virtual disks from all VMs in all domains that are protected under a single DRVA should not exceed 500.
  • Recommended maximum number of domains per DRVA is 4-6. Administrator can determine the preferred configuration of domains using CPT from JSTools.
  • When starting RCR user is only required to enter default gateway, but not the other RocVA network parameters on resume recovery site, so default networking configuration would be: all network selection will be same as DRVA, all interfaces will use DHCP, and default gateway as configured. (DRBC-7590)
  • After an MSA is registered with vcenter, it must not change IP/FQDN under which it was registered. If the change is required, unregister MSA, change IP, then register again.