This topic describes how to configure the local filesystem as the block storage
backend provider for the Storage Controller (SC).
Prerequisites
- Successful completion of all the install sections prior to this section.
- The SC must be installed, registered, and running.
- The local filesystem /var/lib/eucalyptus/volumes must have
enough space to hold volumes and snapshots created in the cloud.
- You must execute the steps below as a Eucalyptus administrator.
In this configuration the SC itself hosts the volume and snapshots for EBS and
stores them as files on the local filesystem. It uses standard Linux iSCSI tools to
serve the volumes to instances running on NCs.
To configure overlay block
storage for the zone, run the following commands on the CLC
-
Configure the SC to use the local filesystem for EBS.
euctl ZONE.storage.blockstoragemanager=overlay
The
output of the command should be similar to:
one.storage.blockstoragemanager=overlay
-
Verify that the property value is now: 'overlay'
euctl ZONE.storage.blockstoragemanager
-
Verify that the SC is listed; note that it may be in the broken
state:
euserv-describe-services --filter service-type=storage
Your local filesystem (overlay) backend is now ready to use with Eucalyptus.