Verifying Server Specifications

Ensure that you have the correct version and/or capacity of the following components for each LifeKeeper for Windows server:

• Windows 2008 R2, 2012, 2012 R2 and 2016 Operating System (64-bit only).

Note: All servers within a cluster should be running the same version of Windows.

Note: File and Printer Sharing is enabled for Lan Manager AND for use with DataKeeper replicated volumes. During the installation procedure, LifeKeeper for Windows can automatically configure the Windows 2008 firewall so that ports it needs are opened, and so that ICMP is enabled.

Note: The Local Security Policy “Network Access: Let Everyone permissions apply to anonymous users” must be Enabled if you plan to use DataKeeper replicated volumes with LifeKeeper for Windows. This policy will be enabled by LifeKeeper installation.

Note: By default, firewall is enabled. During installation, if a firewall is detected, the appropriate rules will be added to windows firewall. However, if the firewall is disabled during installation and re-enabled at a future time, the setup firewall script needs to run to add the rules. This script is installed as LKROOT%\support\firewallSetup.bat. To run the command from the command line, type firewallSetup.bat %LKROOT

List of Firewall Rules Created

*Failure to assign the SIOS DataKeeper TCP/UDP ports could result in:
• a Failed to Create error message when attempting to create a new mirror in the DataKeeper UI
Or
• a Status = 995 error message when attempting to create a mirror using the emcmd . createmirror command


Consult with your Layer 3/Layer 4 or Network Administrator to ensure these are enabled.

*For AWS instances:
• Ensure the aforementioned has been assigned in a Security Group
Or
• Within the Security Group, Allow All Traffic

External Hardware Firewall

• Ethernet TCP/IP-supported network interface card(s) for LAN-based cluster heartbeat(s).

• Disk arrays and storage adapters (SCSI or Fibre Channel) if you are using shared storage.

• Memory. See the LifeKeeper for Windows Release Notes for minimum memory requirements for LifeKeeper for Windows.

Note: Additional memory (beyond that required for LifeKeeper for Windows) is required to run user applications.

• Disk space. See the LifeKeeper for Windows Release Notes for minimum disk space requirements for LifeKeeper for Windows and recovery kits.

• LifeKeeper Graphical User Interface (GUI) platforms and browsers.

• Power Requirements. To maximize the availability of your LifeKeeper for Windows servers, it is strongly recommended that you use Uninterruptible Power Supplies (UPSs), or at a minimum, separate the electrical sources to your servers.

• Application software to be protected by LifeKeeper for Windows.

Determine the server names, processor types, memory and other I/O devices for your configuration. When you specify a backup server, you should ensure that the server you select has the capacity to perform the processing should a failure occur on the primary server.