Utilizing bucket storage allows the LogScale to operate on ephemeral disks. When an instance is replaced due to maintenance or hardware failure data will be pulled from object storage when a new instance replaces the old one. LogScale natively supports Amazon Bucket Storage and Google Cloud Bucket Storage. S3 compatible systems such as MinIO are supported.

When LogScale determines segment files should be deleted, either by hitting retention settings or someone deleting a repository, the segments get marked for deletion, turning them into "tombstones". While they are marked for deletion, any local copies stored on the LogScale nodes will be deleted, but the copy stored in bucket storage will be kept around for a while before it gets deleted. By default, segments are kept for 7 days in bucket storage before the segment files gets deleted from bucket storage. This means it is possible to undo the deletion of segments as long as it is within 7 days of the segments being marked for deletion.

Configuring any type of quota on the bucket storage system is not recommended. LogScale assumes bucket storage will always be able to keep all the files it is trying to store in it.