Performing a Linux Preinstallation › How to Perform a Linux Preinstallation › Mount Points, Virtual Volumes, and Vaults › Directory Structure Definition

Directory Structure Definition

CA Cloud Storage for System z uses the following directory structure to store its Virtual Volumes:

• /var/lib/cacloud/vault_01

  The vault or main directory where all Virtual Volumes are stored.

• /var/lib/cacloud/vault_01/mp_01

  /mp_02

  /mp_03

  Under /vault_01 are the mount point directories. Each of the directories can be mapped to local disk drives, a gateway, or an NFS appliance.

  Note: The /etc/FSTAB file contains the file systems that are mounted during boot. Update this file with the settings recommended by your appliance for your mount points.

• /var/lib/cacloud/vault_01/mp_01/vv_100 <- VOLSERs 100000-100999

  /vv_101 <- VOLSERs 101000-101999

  /mp_02/vv_102 <- VOLSERs 102000-102999

  /mp_03/vv_103 <- VOLSERs 103000-103999

  Virtual VOLSERs in sets of 1000 must be defined as directories under a mount point.

• Soft links, like MVS catalog aliases, map the location of each VOLSER range. The mapped range allows the CA Cloud Storage for System z Server to locate any volume within the vault.

  /var/lib/cacloud/vault_01/vv_100 -> mp_01/vv_100

  /vv_101 -> mp_01/vv_101

  /vv_102 -> mp_02/vv_102

  /vv_103 -> mp_03/vv_103

The cacloud rpm defines the directory structure down to the mount point directories (mp_01, mp_02, and so on).