When you want to offer a highly available service, you can use the High Availability wizard of the desired service if it's available or use the Failover Clustering feature available on Windows Server.
To be able to add Windows Server servers in a cluster , you must first link them to a same Active Directory domain.
Then, you will also need :
Note that the servers that will be members of the cluster must :
For this tutorial, we will use a client PC under Windows 8 and 4 servers :
Important : for cluster creation to be successful and for the cluster name to be registered correctly on your local DNS server, it's important that the servers of your future cluster use only your local DNS server.
To do this, specify only the IP address of your local DNS server as the preferred DNS server and leave nothing as an alternate DNS server.
Because your servers will use multiple network adapters, it's important that your server doen't attempt to register in DNS for network adapters that don't have access to your local DNS server.
For this :
For your cluster to work properly, you will need at least 2 iSCSI drives :
On your iSCSI server, create a new iSCSI virtual disk.
Enter "Witness" for the 1st iSCSI virtual disk.
Note : this will allow the cluster to automatically know that it's the witness disk.
Enter 1 GB as the size.
If you have never created iSCSI virtual disks on your iSCSI server, you will need to create a new iSCSI target.
Otherwise, simply select it from the list.
Provide a name for your iSCSI target.
In our case : iscsi-server.
For access servers, you will need to add the IP addresses that servers of your future cluster can use to connect to your iSCSI server.
Add the IPs of the servers of your future cluster one by one.
In our case, we will allow theses IP addresses :
Enable CHAP authentication to secure your iSCSI server (optional).
Confirm the creation of the iSCSI virtual disk.
Launch the New iSCSI Virtual Disk Wizard to create one or more iSCSI virtual data disks.
In our case, we will name it : Data.
Specify the desired size for this iSCSI virtual disk.
Assign it to the previously created iSCSI target.
Confirm the creation of this iSCSI virtual disk.
That's what your iSCSI server should look like.
Windows Server 8/4/2019
Windows Server 7/12/2019
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