Viewing Current Background Activities; Making Background Activity Settings - Promise Technology VessRAID 1740s Product Manual

VessRAID 1740s, 1840s Product Manual

Viewing Current Background Activities

To view the current background activities:
1. In Tree View, click the Subsystem
2. In Management View, click the Background Activities tab.
A list of current background activities appears, including:
• Rebuild
• PDM (Predictive Data Migration)
• Synchronization
• Redundancy Check
• Migration
• Transition
• Initialization
• Media Patrol

Making Background Activity Settings

To make settings for background activities:
1. In Tree View, click the Subsystem
2. In Management View, click the Background Activities tab and choose
Settings from the dropdown menu.
3. Click the dropdown menu to choose a priority of Low, Medium, and High for
the following functions:
• Rebuild – Rebuilds the data from a failed drive in a disk array
• Synchronization – Checks the data integrity on disk arrays
• Initialization – Sets all data bits in the logical drive to zero
• Redundancy Check – Checks, reports and can correct data
inconsistencies in logical drives
• Migration – Change RAID level or add physical dries to disk arrays
• PDM – Looks for bad blocks the physical drives of disk arrays
• Transition – Returns a revertible spare drive to spare status
The rates are defined as follows:
• Low – Fewer resources to activity, more to data read/write.
• Medium – Balance of resources to activity and data read/write.
• High – More resources to activity, fewer to data read/write.
4. Highlight the following PDM trigger settings and type a value into the
corresponding field:
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