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

VessRAID 1740s, 1840s Product Manual

Managing Background Activity

Background activity refers to any of several functions that take place in the
background while normal operation of the VessRAID continues.
Background activities work in conjunction with disk arrays and logical drives. See
"Managing Disk Arrays" on page 140 and "Managing Logical Drives" on page 154
for more information about how and when to use background activities.
Background Activity Management includes the following functions:
• Viewing Current Background Activities (page 160)
• Making Background Activity Settings (page 160)

Viewing Current Background Activities

From the Main Menu, highlight Background Activity and press Enter. A count of
current background activities appears, including:
• Rebuild
• PDM (Predictive Data Migration)
• Synchronization
• Redundancy Check
• Migration
• Transition
• Initialization
• Media Patrol

Making Background Activity Settings

1. From the Main Menu, highlight Background Activity and press Enter.
2. Highlight Background Activity Settings and press Enter.
3. Highlight following and press the spacebar to toggle between Enabled and
Disabled.
• Media Patrol – Checks the magnetic media on physical drives
• Auto Rebuild – If there is a spare drive of adequate capacity, a critical
disk array will begin to rebuild automatically. If not spare drive is
available, the disk array will begin to rebuild as soon as you replace the
failed physical drive with an unconfigured physical drive of equal or
greater size.
4. Highlight following and press the spacebar to toggle through Low, Medium,
and High rates:
• Rebuild – Checks the data integrity on disk arrays
• Migration – Change RAID level or add physical dries to disk arrays
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