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recall
A function that allows users to access files that have been migrated from their
workstations to TSM storage via the Tivoli Space Manager (HSM client). Contrast
with migrate.
reclamation
A process of consolidating the remaining data from many sequential access volumes
onto fewer new sequential access volumes.
reclamation threshold
The percentage of reclaimable space that a sequential access media volume must
have before the server can reclaim the volume. Space becomes reclaimable when
files are expired or are deleted. The percentage is set for a storage pool.
recovery log
A log of updates that are about to be written to the database. The log can be used to
recover from system and media failures.
recovery log buffer pool
Used to hold new transactions records until they can be written to the recovery log.
recovery media
Media that contains data necessary to recover the TSM server and clients.
reduce
The process of freeing up enough space to allow you to delete a volume from the
database or recovery log. Contrast with extend.
REEL
On TSM servers that support it, a device class that is used to categorize tape
devices that support tape reels, such as the 3420 9-track tape device.
register
(1) Define a client node or administrator who can access the server. See registration.
(2) Specify licenses that have been purchased for the server.
registration
The process of identifying a client node or administrator to the server.
reply operator
On a VM server, a VM user ID that specifies an operator who will reply to tape
mount requests by the server.
restore
The process of returning a backup copy to an active storage location for use. TSM
has processes for restoring its database, storage pools, storage pool volumes, and
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Tivoli Storage Manager Messages
Glossary