138 Copyright © Acronis, Inc., 2000-2010To attach a managed vault to a storage node, perform the following steps.VaultStorage nodeSelect the Acronis Backup & Recovery 10 Storage Node that will manage the vault.PathSpecify the path to the location where the archives are stored.Database pathSpecify a local folder on the storage server to create a vault-specific database. This databasewill store the metadata required for cataloguing the archives and performing deduplication.PasswordFor the vault that was encrypted, provide the encryption password.After you have performed all the required steps, click OK to commit to attaching the vault. Thisprocedure may last for quite a while since the storage node has to scan the archives, write themetadata in the database, and deduplicate the archives if the vault was originally deduplicating.4.1.3 Tape librariesThis section describes in detail how to use robotic tape devices as vaults for storing backup archives.A tape library (robotic library) is a high-capacity storage device that contains the following: one or more tape drives multiple (up to several thousand) slots to hold tape cartridges one or more loaders (robotic mechanisms) intended for relocating the tape cartridges betweenthe slots and the tape drives barcode readers (optional).4.1.3.1 OverviewAcronis Backup & Recovery 10 provides full support of a tape library through Acronis Backup &Recovery 10 Storage Node. The storage node should be installed on the machine a tape library isattached to. Storage node can simultaneously use more than one tape library for keeping archives.To manage a tape library media, the storage node uses the Windows Removable Storage Manager(RSM). See the RSM Media Pools (p. 140) section for more information.A dedicated database of the storage node keeps information of the backup content written onto thetapes. So some operations (for example, Cleanup (p. 401)) can be performed quite fast withoutaccessing the media. It is possible to view the content of a backup archive located on a tape throughthe console, even if a tape library is turned off, due to content information stored in the database. Tocreate an incremental or differential backup of data, the program uses the database instead ofloading, mounting, rewinding and reading a tape with the full data backup. However, a tape shouldbe read, for example, to validate (p. 410) a backup or to recover data from a backup.A tape library can be locally attached to a machine the agent is installed on, but only in the case thelibrary is considered as a single tape drive. The agent can use such device to write and read databackups, but the backup’s format differs from the format of the backups on the tapes writtenthrough the storage node. To get information about the readability of the archives on tapes, written