Product manual

VTrak E-Class Product Manual
70
Making Background Activity Settings
To make settings for background activities:
1. In Tree View, click the Subsystem icon.
2. From the dropdown menu on the Background Activities tab, choose
Settings.
3. Click the dropdown menu to choose a priority of Low, Medium, and High for
the following functions:
• Rebuild – Rebuilds data to a replacement physical drive in a disk array
• Synchronization – Checks the data integrity on disk arrays
• Initialization – Full initialization sets all data bits in the logical drive to a
specified pattern, such as all zeros
• Redundancy Check – Checks, reports and can correct data
inconsistencies in logical drives
• Migration – Change RAID level or add physical drives to disk arrays
• PDM – Migrates data from a suspect physical drive to a replacement
drive in a disk array
• 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:
• Reassigned Block Threshold – 1 to 512 blocks
• Error Block Threshold – 1 to 1024 blocks
5. Check to enable or uncheck to disable the following functions:
• Media Patrol – Checks the magnetic media on physical drives
• Auto Rebuild – When enabled and no 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
6. Click the Submit button to save your settings.