This procedure describes how to create LUNs and present them to the management cluster. The LUNs are used as datastores for VMware vCenter Server Appliance deployment as well as other management VMs. You can also use this procedure to create additional LUNs for management and compute clusters.

To create a LUN:

1. Log in to Unisphere storage management.

2. Create storage pools as needed.

The number and size of the pools depend on the requirements of each environment and the number of available drive types in the storage array.

3. In the left pane, click Block.
4. Click the plus sign (+) in the upper left of the LUNs pane.

The Create LUNs wizard opens.

5. On the Configure LUN(s) page:
   1. In the Number of LUNs field, select 1.
   2. In the Name field, enter the name for the LUN.
   3. In the Pool field, select the pool from which the LUN is being created.
   4. In the Size field, enter the size of the LUN.

The following table provides vCenter Server Appliance space requirements.

Table 7.     vCenter Server Appliance requirements: Disk storage on the host machine

5. To create a thin LUN, select Thin.

If Thin is not selected, a thick LUN will be created.

6. Click Next.

6. On the Configure Access page, click the plus sign (+) in the upper-left corner.
7. In the Select Host Access window, select the management hosts that require access to the LUN, as shown in the following figure, and then click OK.

Figure 7.         Select Host Access window

8. On the Access page, review the host selection and click Next.
9. On the Snapshot page, select Enable Automatic Snapshot Creation if you want snapshots created automatically, and then click Obtain the HBA’s WWNs.
10. On the Replication page, if replication is being configured for the LUN, select Enable Replication and select replication settings.
11. On the Summary page, review the selections and click Finish.
12. On the Results page, click Close.
13. If another datastore is required for additional management VMs, repeat steps 4 through 12 to create a datastore that can accommodate all of the management VMs.

The following table provides an example of sizing for additional management VMs. For this example, a 1 TB LUN is sufficient.

Table 8.            Management VM size example

14. Repeat steps 4 through 12 to create additional LUNs as needed and assign them to appropriate hosts.