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4-20 Normal Operations 601354 Rev A
Like the mount by media list and drive identifier method, the
mount by media class and drive identifier method is used when
the specific medium to be mounted is unimportant except that it
be chosen from a specific Media Class. The medium selection
algorithm used is similar to that of the mount by media list and
drive identifier method.
The mount by media class and drive pool method uses the same
selection criteria as the mount by media list and drive pool
method.
Mount by criteria and drive identifier can be used to mount the
best medium based on client-defined criteria fields. Each
medium can specify up to eight criteria for each medium in a
VolServ system. Refer to “Modify Media Criteria” on
page 4-34. The utility of this method depends on how well these
optional fields are controlled/updated by the user.
The mount by criteria and drive pool method uses the same
selection criteria as the mount by media list and drive pool
method.
A Mount Media command fails for any of the following
reasons:
• If the specified drive or bin is (are) not in the on-line state.
Refer to “Vary Drive” on page 4-22.
• If the mount by media class and drive identifier of the
mount by media class and drive pool method is used and all
candidate media are in a different archive than all candidate
drives (i.e., no cross-archive move is allowed).
• If the reclassify option is selected and the destination media
class capacity is reached or if the destination class is an
incompatible media type.
• If a media list contains media with different media types.