openstack-manuals/doc/install-guide/source/swift-storage-install.rst

Install and configure the storage nodes

This section describes how to install and configure storage nodes that operate the account, container, and object services. For simplicity, this configuration references two storage nodes, each containing two empty local block storage devices. The instructions use /dev/sdb and /dev/sdc, but you can substitute different values for your particular nodes.

Although Object Storage supports any file system with extended attributes (xattr), testing and benchmarking indicate the best performance and reliability on XFS. For more information on horizontally scaling your environment, see the Deployment Guide.

Prerequisites

Before you install and configure the Object Storage service on the storage nodes, you must prepare the storage devices.

Note

Perform these steps on each storage node.

1. Install the supporting utility packages:

   ubuntu or debian

   # apt-get install xfsprogs rsync

   rdo

   # yum install xfsprogs rsync

   obs

   # zypper install xfsprogs rsync

2. Format the /dev/sdb and /dev/sdc devices as XFS:

   # mkfs.xfs /dev/sdb
   # mkfs.xfs /dev/sdc

3. Create the mount point directory structure:

   # mkdir -p /srv/node/sdb
   # mkdir -p /srv/node/sdc

4. Edit the /etc/fstab file and add the following to it:

   /dev/sdb /srv/node/sdb xfs noatime,nodiratime,nobarrier,logbufs=8 0 2
   /dev/sdc /srv/node/sdc xfs noatime,nodiratime,nobarrier,logbufs=8 0 2

5. Mount the devices:

   # mount /srv/node/sdb
   # mount /srv/node/sdc

6. Edit the /etc/rsyncd.conf file and add the following to it:

   uid = swift
   gid = swift
   log file = /var/log/rsyncd.log
   pid file = /var/run/rsyncd.pid
   address = MANAGEMENT_INTERFACE_IP_ADDRESS
   
   [account]
   max connections = 2
   path = /srv/node/
   read only = false
   lock file = /var/lock/account.lock
   
   [container]
   max connections = 2
   path = /srv/node/
   read only = false
   lock file = /var/lock/container.lock
   
   [object]
   max connections = 2
   path = /srv/node/
   read only = false
   lock file = /var/lock/object.lock

   Replace MANAGEMENT_INTERFACE_IP_ADDRESS with the IP address of the management network on the storage node.

   Note

   The rsync service requires no authentication, so consider running it on a private network in production environments.

ubuntu or debian

7. Edit the /etc/default/rsync file and enable the rsync service:

   RSYNC_ENABLE=true

8. Start the rsync service:

   # service rsync start

obs or rdo

7. Start the rsyncd service and configure it to start when the system boots:

   # systemctl enable rsyncd.service
   # systemctl start rsyncd.service

Install and configure components

Note

Perform these steps on each storage node.

1. Install the packages:

   ubuntu or debian

   # apt-get install swift swift-account swift-container swift-object

   rdo

   # yum install openstack-swift-account openstack-swift-container \
     openstack-swift-object

   obs

   # zypper install openstack-swift-account \
     openstack-swift-container openstack-swift-object python-xml

ubuntu or rdo or debian

2. Obtain the accounting, container, and object service configuration files from the Object Storage source repository:

   # curl -o /etc/swift/account-server.conf https://git.openstack.org/cgit/openstack/swift/plain/etc/account-server.conf-sample?h=stable/liberty
   # curl -o /etc/swift/container-server.conf https://git.openstack.org/cgit/openstack/swift/plain/etc/container-server.conf-sample?h=stable/liberty
   # curl -o /etc/swift/object-server.conf https://git.openstack.org/cgit/openstack/swift/plain/etc/object-server.conf-sample?h=stable/liberty

6. Ensure proper ownership of the mount point directory structure:

   # chown -R swift:swift /srv/node

7. Create the recon directory and ensure proper ownership of it:

   # mkdir -p /var/cache/swift
   # chown -R root:swift /var/cache/swift

obs

5. Ensure proper ownership of the mount point directory structure:

   # chown -R root:swift /srv/node

6. Create the recon directory and ensure proper ownership of it:

   # mkdir -p /var/cache/swift
   # chown -R root:swift /var/cache/swift