This guide describes how to configure and use an intelligent disk appliance inNetBackup for backups. The disk appliance must conform to the VeritasOpenStorage API.See“About the NetBackup OpenStorage option”on page 7.Information about how to configure and use NetBackup with snapshots on diskappliance storage is available in a different guide.See theNetBackup Replication Director Solutions Guide:About the NetBackup OpenStorage optionOpenStorage is a Veritas API that allows NetBackup to communicate with thestorage implementations that conform to the API. Storage vendors participate inthe Veritas Technology Partners Program. Veritas qualifies their storage solutionsfor the OpenStorage API.1Chapter
Depending on the storage implementation, OpenStorage may provide the followingcapabilities:■Share disks. Multiple heterogeneous media servers can access the same diskvolume concurrently.■Balance load and performance. NetBackup balances backup jobs and storageusage among the media servers and disk pools. For each backup job, NetBackupchooses the least full disk volume and least busy media server.■Use of disk appliance capabilities, which may include optimized off-hostduplication and deduplicated storage capabilities.■Fast storage provisioning.■Almost unlimited storage.■Alternative to off-site vaulting.■Simplified disaster recovery. Access your data from anywhere over the Internet.Figure 1-1shows an OpenStorage configuration that uses a disk appliance.Figure 1-1OpenStorage appliance configurationLoad-balanced NetBackup media servers adata movers. They have the vendor plug-ininstalled.The disk appliance is the storageserver.Any connectivity (directly attached, SAN,LAN)NetworkAbout control of the storageThe vendor's storage implementation controls the storage format and where theimages reside on the storage. The vendor controls the data transfer method.Consequently, performance and storage utilization are highly optimized.NetBackup has no knowledge of how the backup images are stored. Also, Veritasdoes not control which capabilities the vendor exposes through the OpenStorageAPI. Similarly, Veritas and NetBackup have no control over the communicationbetween the vendor plug-in and the storage server. The vendor determines the APIor protocol to use between the plug-in and the storage server.8Introducing disk appliance storage solutionsAbout control of the storage
NetBackup determines when backup images are created, copied, or deleted. Imagescannot be moved, expired, or deleted on the storage unless NetBackup instructsthe appliance to do so through the API.About replication to OpenStorage devicesNetBackup offers two types of replication to OpenStorage devices, as follows:Replication of backups to another NetBackup domain is known as Auto ImageReplicaton.