Master host storage areas

A Control Center master host requires the following storage areas:

Root
Size: Depends on configuration
Type: XFS file system (typically)
Mount point: /
Resource: One or more block devices or partitions, or one or more LVM physical volumes.
Preparation: None. The file system is created when the operating system is installed.
Docker temporary
Size: 10GB
Type: XFS file system (typically)
Mount point: /tmp
Resource: One or more block devices or partitions, or one or more LVM physical volumes.
Preparation: Depends on configuration. Typically, additional space is allocated for the root filesystem, but a separate real or logical partition may be used. The Control Center Installation Guide includes instructions to link the Docker temporary directory to /tmp.
Swap
Size: 12GB to 16GB
Type: swap
Mount point: None
Resource: One or more block devices or partitions, one or more LVM physical volumes, or a special file on the root filesystem.
Preparation: Depends on configuration.
Docker data
Size: 50GB
Type: LVM thin pool
Mount point: None
Resource: One or more block devices or partitions, or one or more LVM physical volumes.
Preparation: None. The installation procedures include steps for creating the thin pool.
Control Center internal services data
Size: 50GB
Type: XFS file system
Mount point: /opt/serviced/var/isvcs
Resource: One or more block devices or partitions, or one or more LVM physical volumes.
Preparation: None. The installation procedures include steps for formatting the resource.
Control Center audit logging
Size: 10GB (default)
Type: XFS file system
Mount point: /var/log/serviced
Resource: One or more block devices or partitions, one or more LVM physical volumes, or a remote file server that is compatible with Linux.
Preparation: Depends on configuration. Typically, additional space is allocated for the root filesystem. For more information about audit logging, refer to the Control Center Reference Guide.
Application data
Size: 200GB suggested. The size should be twice as large as the base device, which determines the size of tenant virtual devices.
Type: LVM thin pool
Mount point: None
Resource: One or more block devices or partitions, or one or more LVM physical volumes.
Preparation: None. The installation procedures include steps for creating the thin pool.
Application data backups
Size: 150GB suggested. The size should be at least 150% of the size of the base device.
Type: XFS file system, or a Linux-compatible file server
Mount point: /opt/serviced/var/backups
Resource: One or more block devices or partitions, one or more LVM physical volumes, or a remote file server that is compatible with Linux.
Preparation: None. The installation procedures include steps for formatting or mounting the resource.

The following example shows the disk configuration of a Control Center master host.

Figure 1. Example master host with 7 disks