Spectra Logic Spectra T950V User Manual page 250

Chapter 9 — Configuring and Using Media Lifecycle Management
MLM Database Management After a cartridge is added to the MLM
database, its MLM data remains in the database even if the cartridge is
exported from the library. If the cartridge is later reimported, the MLM
database is updated to reflect any new information obtained from the
cartridge MAM. When a cartridge is permanently removed from service, it
can be manually deleted from the database.
The MLM database is restricted to a maximum of 75,000 records. When
this limit is reached, the record for the least recently exported cartridge, as
determined by the Export Date tracked by MLM, is automatically deleted.
The library does not notify you when it reaches the maximum number of
records.
To ensure that you have a complete record of all the cartridges that are used
in the library, regularly generate and export a Media Health report for the
entire library (see Using MLM Reporting on page 275). When a cartridge is
retired or permanently exported from the library, its record can be deleted
from the MLM database. Records can be deleted individually or as a group
(see Delete MLM Records From the Database on page 286).
If desired, the information in the MLM database can be exported to a
comma‐separated‐value (CSV) file, which can then be imported into
Microsoft Excel
(see Download the MLM Database for Analysis and Archival on page 289).
Data Cartridge Tracking
A primary function of MLM is to track the health and usage of the data
cartridges that are currently in or were previously in the library.
Functional Overview Each time a Spectra Certified MLM‐enabled data
cartridge is loaded into a drive, MLM records over 30 data points about the
cartridge. These data points include health information, the cartridge age,
how many times it was loaded and into which drives, and how many
errors it accumulated. It also records when the cartridge is exported from
the library and by whom. Each MLM‐enabled data cartridge has a unique
identifier that allows each cartridge to be tracked throughout its life, even
if its barcode label is damaged or removed.
Remaining Capacity Calculations In addition to media health, the library
uses information in the MLM database to estimate the Remaining Capacity
report for the cartridges in the selected partition. If the partition contains a
mix of MLM and non‐MLM‐enabled data cartridges, the report only shows
the estimated capacity on the MLM‐enabled cartridges.
August 2019
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or other software applications that support this file type
Note: Until a data cartridge is loaded into, threaded, and then
unloaded from a drive for the first time, its remaining capacity is
not included in the Remaining Capacity report.
BlueScale Media Lifecycle Management
User Guide—Spectra T950 Library
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