Creating zSeries volumes

Complete this task to create zSeries volumes and to specify their attributes and properties.

Only certain LCUs are available for an extent pool. To be available, the LCU numbers must match in parity—even or odd—with the server number that is associated with the extent pool. For example, given an extent pool that was associated with Server 1, which is odd, you will have LCUs for selection in the Define volume characteristics page only if there are LCUs that are also odd. If none appear, you must create LCUs by assigning odd numbers to them in the Create zSeries LCUs wizard.

To create zSeries volumes, perform the following steps:

In the navigation, select Real-time manager or Simulated manager > Configure storage > zSeries > Volumes – zSeries. On the Volumes – zSeries main page, from the Select storage unit list, select a storage unit. In the Select LCU drop-down list, select a zSeries LCU.
From the Select Action list, select Create..., and then click Go. The Create zSeries volume – Select extent pool is displayed.
Select the extent pools that you want to use to create your volumes or click Create new extent pool to create new CKD extent pools that you can then use to create your zSeries volumes. Click Next. The Create zSeries volume – Define base volume characteristics page is displayed.
In Create zSeries volume – Define base volume characteristics, specify the volume type and LCU number that are associated with the zSeries volumes. Click Next. The Create zSeries volume – Define base volume properties page is displayed.
Note: LCUs are displayed for selection only if their numbers match in parity, even or odd, with the server number that was selected for the extent pool. If no LCUs are displayed, you must create them with the correct parity before you can continue.
In Create zSeries volume – Define base volume properties, select an addressing policy and if necessary, supply a maximum LCU address. Enter the quantity of base volumes. If you selected a custom volume type on the Define base volume characteristics page, you have the option to specify a size in cylinders. You also must specify the quantity of LCUs, the base start address, and a sorting order of Ascending or Descending. The Available storage table shows the amount of storage that you can work with while defining your volume properties. Click Next. The Create zSeries volume – Create volume nicknames page is displayed.
In Create zSeries volume – Create volume nicknames, choose if you want to generate a sequence of nicknames based on the specified prefix and suffix and if you want to use hexadecimal values. If you are using hexadecimal values, see Using hexadecimal values for conversion information. Click Next. The Create zSeries volume – Define alias assignments page is displayed.
In Create zSeries volume – Define alias assignments, select the LCUs for which you want to define the aliases. Then specify the starting address and address sorting order. Provide the values for the number of aliases per number of volumes. For example, if you enter 1 in the Aliases field, and 4 in the Per volumes field, you are assigning one alias name for every four volumes. Click Next to continue. The Create zSeries volume – Verification page is displayed.
Use the Verification page to review the attributes and verify that they are correct. If the attributes and values are not correct, click Back, as appropriate, to return and specify the correct values. Otherwise, click Finish to complete the volume creation process.

If you are creating a new logical storage configuration, return to Creating a custom logical storage configuration and complete the rest of the steps.