Chapter 9 — Configuring and Using Media Lifecycle Management Managing the MLM Database
December 2019 User Guide—Spectra T200, T380, and T680 Libraries
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3. Click the green arrow button for the cartridge. The library adjusts
parameters used to calculate the tape health until the reported health is
Average.
4. Attempt to resolve the issues that were causing the media health to be
reported as poor.
MANAGING THE MLM DATABASE
The MLM database contains the usage history, health, and the verification
data for all of the MLM-enabled cartridges in your library. It also contains
the Drive Lifecycle Management data for all of the drives in your library
(see Monitoring Drive Health Using DLM on page 313).
Deciding when and how often you back up the MLM database depends on
many factors, including how often tapes are loaded into a drive.
If all of the tapes are loaded into drives frequently, the MLM database
can be rebuilt relatively quickly. The database can be backed up less
frequently.
If many of the tapes remain in the library without being loaded into a
drive for a long period of time, or if tapes are exported and stay outside
of the library for a long period of time, rebuilding the MLM database
can take a long time. Back up the MLM database more frequently.
Figure 173 Click the green override button to reset the reported health for an
MLM-enabled LTO cartridge.
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