Shulou(Shulou.com)06/02 Report--

1. Create a disk

Disk initialization, volume creation, and formatting.

2. Create two folders in the create disk

One of them is used to map to the arbitration disk and the other to make a disk.

3. Create a role:

To add ISCSI services, file server and VDS VSS as well as ISCSI target services are required.

4. Create an ISCSI virtual disk

Create it using a custom path and select the folder you just created.

To add an access target is to add a client server that needs to be accessed.

Name, which is the target name that initiates the iscsi program.

Another is the name of the virtual disk, which does not affect usage.

5. Iscsi program initiation

In the administrative tool, there is an iscsi program initiator.

Each server, through the discovery of the ISCSI program initiator, adds the IP address of the target iscsi server, then in the target tab, then connects, and then in the device tab, automatically configures.

Each server needs to be configured like this

6. Disk initialization

One of the servers is used to initialize and mount the disk through management tools.

The other two also need to mount the disk and go online.

7. Establish a failover cluster

Failover clustering is installed on each server.

Then create the cluster on the machine that is the master node.

8. The function of HA

The main HA is to do dual-computer hot backup. MSCS also supports multiple devices to join the same failover cluster, but only one can provide services at a time, so there is no point in joining more machines.

If you want multi-machine service, you need to do NLB and so on.

9. The limitation of MSCS is that roles need to be added to the failover cluster to serve. So you need something that supports the role of Windows to do HA, but you can't do it for those who don't.

10. Failure recovery role, no failure recovery role

It means that if A fails, after switching to B, if A resumes failure, whether to preempt and change back to the host.

If it is preemptive, it needs to be interrupted, and if it is not preempted, it is not necessary.

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