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Managing with WebPAM PROeVess A6120 Product Manual
Note
Initializationofthelogicaldrivemustbecompletedbeforea
RedundancyCheckcanbepreformed.
Note
YoucanusetheschedulertosetupaRedundancyCheckSchedule.
Tosetupaschedule,clickthemenuexpandertotherightofthe
SchedulertabandselectRedundancy Check Schedule.
Pdm
Predictive Data Migration (PDM) is the migration of data from the suspect physical drive to a spare drive,
similar to rebuilding a logical drive. But unlike Rebuilding, PDM constantly monitors your physical drives and
automatically copies your data to a spare drive before the physical drive fails and your logical drive goes Critical.
PDM Settings
To change PDM setting the in Background Activities Settings menu:
1. Click the PDM Rate drop-down menu and choose a rate:
• Low–FewersystemresourcestoPDM,moretodataread/writeoperations.
• Medium–Balancessystemresourcesbetween
PDManddataread/writeoperations.
• High–MoresystemresourcestoPDM,fewertodataread/writeoperations.
2. Highlight the current values in the block threshold elds and input new values.
Reassigned Block Threshold rangeis1to512blocks.
Error Block Threshold rangeis1to2048blocks.
3. Click the Submit button.
trAnsition
Transition is the process of replacing a revertible spare drive that is currently part of a disk array with an
uncongured physical drive or a non-revertible spare drive.
Transition Rate
To change Transition Rate setting the in Background Activities Settings menu:
1. Click the Transition Rate drop-down menu and choose a rate:
• Low–FewersystemresourcestoTransition,moretodataread/writeoperations.
• Medium–Balancessystemresourcesbetween
Transitionanddataread/writeoperations.
• High–MoresystemresourcestoTransition,fewertodataread/writeoperations.
2. Click the Conrm button.
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