Oracle Video server, Manual

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Oracle Video Server (OVS)
2-12 Introducing Oracle Video Server
MDS Utilities
The OVS provides a group of general operating system command line utilities that
allow you to perform standard file operations on files and volumes in the MDS.
More specialized MDS utilities include:
■
tape archival utility—enables you to archive, backup, and retrieve a group of
files to and from a single archive file in tape archive (TAR) format or a sequence
of tapes in an Exabyte stacker
■
defragmenter utility—allows you to defragment volumes to reduce wasted
space without taking the OVS offline
■
rebuild utility—enables you to:
■
replace a failed disk and rebuild data onto the replacement while the MDS
delivers video, if your operating system supports hot-swapping disks, or to
■
rebuild data from a failed disk onto a spare disk from redundantly stored
data while the MDS plays video, or to
■
take the OVS offline, replace a failed disk, and rebuild data onto the
replacement
MDS utilities accept wildcard specifications as general operating system command-
line utilities do.
HSM (Hierarchical Storage Management)
The MDS is part of the HSM (hierarchical storage management) supported by the
OVS that stores data in:
• memory (primary storage)
• MDS volumes on disk (secondary storage)
• a tape archive (tertiary storage)
You can store large numbers of files in a tertiary tape archive.
HSM Utilities The OVS provides HSM utilities that enable you to:
■
load files from tertiary storage to the MDS before clients need to access them
■
archive files from the MDS to tertiary storage if clients will not need them for a
period of time, to make room in the MDS for other files