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Cartridge/Magazine Removal and Format Panels for Optical Libraries

IP.com Disclosure Number: IPCOM000115439D
Original Publication Date: 1995-May-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 4 page(s) / 144K

Publishing Venue

IBM

Related People

Gazza, JM: AUTHOR [+4]

Abstract

When an optical library fills up, the user can enter a panel to select which cartridge(s) to remove in order to make room for new cartridges. Alternately, the user may wish to format rewritable media, to make room for new data. The following front-of-screen panels offer means of facilitating these tasks.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 48% of the total text.

Cartridge/Magazine Removal and Format Panels for Optical Libraries

      When an optical library fills up, the user can enter a panel to
select which cartridge(s) to remove in order to make room for new
cartridges.  Alternately, the user may wish to format rewritable
media, to make room for new data.  The following front-of-screen
panels offer means of facilitating these tasks.

      Removing cartridges from libraries and formatting data on
reusable cartridges are similar tasks, in that both deal with data
which is either rarely used or totally unwanted.  Cartridge rankings
are proposed to help sort which data to keep and which to remove or
discard.  These rankings could include, but are not limited to the
following criteria:
  o  Least Recently Used (LRU) Cartridges
  o  Least Frequently Used (LFU) Cartridges
  o  Oldest Cartridges
  o  Full Cartridges

      The LFU criterion could be based on a running window, e.g. the
past 30 days.  The LFU history could be exponentially weighted.  This
would keep old active-history of cartridges or magazines from
overwhelming current inactivity.

      Each of the above criteria could be applied to both volumes
(sides) of the optical cartridge.  In other words, the user cannot
export the inactive side of a cartridge and keep the active side.
However, the user could format the inactive side of a rewritable
optical disk while keeping the active side.

      These selection criteria would be portrayed in a panel, such as
shown in Fig. 1.  Fig. 1 shows the panel for removing cartridges from
a library.  "Cartridge to be Removed" would be changed to "Volume to
be Formatted" for the format panel.

      Note that in both Figs. 1 and 2, that the user could specify if
the removal or formatting operation was to enter the job queue
immediately or be run in the background, when the library was
quiescent, such as second or third shift.  By running the removal or
format jobs in the background, the picker and drive(s) are not tied
up during prime time, first shift, which reduces queue times during
periods of heavy library utilization.

      Using a mouse, trackball, eraserhead, or arrow-keys, the user
could select cartridges for removal from the library or for
formatting.  This selection could be made based on the LFU, LRU, age,
filled to capacity criteria, etc..  Alternately, the user may simply
select a cartridge for removal from the directory of what is inside
the library, in case of hardcopy passthrough to another optical
library.  Note:  The directory of what cartridges are candidates for
exporting are shown pairwise.  This way, the user knows what is being
removed.

      The user could type the name of the cartridge to be exported,
highlight the desired cartridge(s), or employ drag and drop via a
mouse, trackball, or eraserhead.  Note:  more than one cartridge
could
be removed or formatted from one session of the respective panels.

      This panel...