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migrate
(1) To move data from one storage pool to the storage pool specified as the next
pool in the hierarchy. The process is controlled by the high and low migration
thresholds for the first storage pool. See high migration threshold and low migration
threshold. (2) To copy a file from a Tivoli Space Manager client node to TSM
storage. Tivoli Space Manager replaces the file with a stub file on the client node.
The process is controlled by the include-exclude list and by space management
attributes in management classes.
migration
The process of moving data from one storage location to another. See client
migration and server migration.
minidisk
A logical subdivision of a VM physical disk that provides storage on contiguous
cylinders of DASD. On a VM server, a minidisk can be defined as a disk volume
that can be used by the database, recovery log, or a storage pool.
mirroring
A feature that protects against data loss within the database or recovery log by
writing the same data to multiple disks at the same time. Mirroring supports up to
three exact copies of each database or recovery log volume.
mm
Millimeter.
mode
A copy group attribute that specifies whether to back up a file that has not been
modified since the last time the file was backed up. See modified and absolute.
modified
A backup copy group mode value indicating that a file is considered for incremental
backup only if it has changed since the last backup. A file is considered changed if
the date, size, owner, or permissions have changed. See mode. Contrast with
absolute.
Motif
A graphical user interface that performs window management and contains a high
level toolkit for application program development. It provides an icon view of the
UNIX file system. Also known as X-Windows/Motif or Motif X—Toolkit.
mount
To place a data medium (such as a tape cartridge) on a drive in a position to
operate.
1429
Tivoli Storage Manager Messages
Glossary